21270060

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:373

約数の個数: 192

約数和(自身を含む): 80317440

約数和(自身を除く): 59047380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 51, 54, 60, 63, 68, 70, 84, 85, 90, 102, 105, 108, 119, 126, 135, 140, 153, 170, 180, 189, 204, 210, 238, 252, 255, 270, 306, 315, 331, 340, 357, 378, 420, 459, 476, 510, 540, 595, 612, 630, 662, 714, 756, 765, 918, 945, 993, 1020, 1071, 1190, 1260, 1324, 1428, 1530, 1655, 1785, 1836, 1890, 1986, 2142, 2295, 2317, 2380, 2979, 3060, 3213, 3310, 3570, 3780, 3972, 4284, 4590, 4634, 4965, 5355, 5627, 5958, 6426, 6620, 6951, 7140, 8937, 9180, 9268, 9930, 10710, 11254, 11585, 11916, 12852, 13902, 14895, 16065, 16881, 17874, 19860, 20853, 21420, 22508, 23170, 27804, 28135, 29790, 32130, 33762, 34755, 35748, 39389, 41706, 44685, 46340, 50643, 56270, 59580, 62559, 64260, 67524, 69510, 78778, 83412, 84405, 89370, 101286, 104265, 112540, 118167, 125118, 139020, 151929, 157556, 168810, 178740, 196945, 202572, 208530, 236334, 250236, 253215, 303858, 312795, 337620, 354501, 393890, 417060, 472668, 506430, 590835, 607716, 625590, 709002, 759645, 787780, 1012860, 1063503, 1181670, 1251180, 1418004, 1519290, 1772505, 2127006, 2363340, 3038580, 3545010, 4254012, 5317515, 7090020, 10635030, 21270060]

約数ペア:

[(1, 21270060), (2, 10635030), (3, 7090020), (4, 5317515), (5, 4254012), (6, 3545010), (7, 3038580), (9, 2363340), (10, 2127006), (12, 1772505), (14, 1519290), (15, 1418004), (17, 1251180), (18, 1181670), (20, 1063503), (21, 1012860), (27, 787780), (28, 759645), (30, 709002), (34, 625590), (35, 607716), (36, 590835), (42, 506430), (45, 472668), (51, 417060), (54, 393890), (60, 354501), (63, 337620), (68, 312795), (70, 303858), (84, 253215), (85, 250236), (90, 236334), (102, 208530), (105, 202572), (108, 196945), (119, 178740), (126, 168810), (135, 157556), (140, 151929), (153, 139020), (170, 125118), (180, 118167), (189, 112540), (204, 104265), (210, 101286), (238, 89370), (252, 84405), (255, 83412), (270, 78778), (306, 69510), (315, 67524), (331, 64260), (340, 62559), (357, 59580), (378, 56270), (420, 50643), (459, 46340), (476, 44685), (510, 41706), (540, 39389), (595, 35748), (612, 34755), (630, 33762), (662, 32130), (714, 29790), (756, 28135), (765, 27804), (918, 23170), (945, 22508), (993, 21420), (1020, 20853), (1071, 19860), (1190, 17874), (1260, 16881), (1324, 16065), (1428, 14895), (1530, 13902), (1655, 12852), (1785, 11916), (1836, 11585), (1890, 11254), (1986, 10710), (2142, 9930), (2295, 9268), (2317, 9180), (2380, 8937), (2979, 7140), (3060, 6951), (3213, 6620), (3310, 6426), (3570, 5958), (3780, 5627), (3972, 5355), (4284, 4965), (4590, 4634)]