21313530

素因数分解:

$2^1\times 3^5\times 5^1\times 7^2\times {\mathrm{179}}^1$

素因数の和:215

約数の個数: 144

約数和(自身を含む): 67223520

約数和(自身を除く): 45909990

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 179, 189, 210, 243, 245, 270, 294, 315, 358, 378, 405, 441, 486, 490, 537, 567, 630, 735, 810, 882, 895, 945, 1074, 1134, 1215, 1253, 1323, 1470, 1611, 1701, 1790, 1890, 2205, 2430, 2506, 2646, 2685, 2835, 3222, 3402, 3759, 3969, 4410, 4833, 5370, 5670, 6265, 6615, 7518, 7938, 8055, 8505, 8771, 9666, 11277, 11907, 12530, 13230, 14499, 16110, 17010, 17542, 18795, 19845, 22554, 23814, 24165, 26313, 28998, 33831, 37590, 39690, 43497, 43855, 48330, 52626, 56385, 59535, 67662, 72495, 78939, 86994, 87710, 101493, 112770, 119070, 131565, 144990, 157878, 169155, 202986, 217485, 236817, 263130, 304479, 338310, 394695, 434970, 473634, 507465, 608958, 710451, 789390, 1014930, 1184085, 1420902, 1522395, 2131353, 2368170, 3044790, 3552255, 4262706, 7104510, 10656765, 21313530]

約数ペア:

[(1, 21313530), (2, 10656765), (3, 7104510), (5, 4262706), (6, 3552255), (7, 3044790), (9, 2368170), (10, 2131353), (14, 1522395), (15, 1420902), (18, 1184085), (21, 1014930), (27, 789390), (30, 710451), (35, 608958), (42, 507465), (45, 473634), (49, 434970), (54, 394695), (63, 338310), (70, 304479), (81, 263130), (90, 236817), (98, 217485), (105, 202986), (126, 169155), (135, 157878), (147, 144990), (162, 131565), (179, 119070), (189, 112770), (210, 101493), (243, 87710), (245, 86994), (270, 78939), (294, 72495), (315, 67662), (358, 59535), (378, 56385), (405, 52626), (441, 48330), (486, 43855), (490, 43497), (537, 39690), (567, 37590), (630, 33831), (735, 28998), (810, 26313), (882, 24165), (895, 23814), (945, 22554), (1074, 19845), (1134, 18795), (1215, 17542), (1253, 17010), (1323, 16110), (1470, 14499), (1611, 13230), (1701, 12530), (1790, 11907), (1890, 11277), (2205, 9666), (2430, 8771), (2506, 8505), (2646, 8055), (2685, 7938), (2835, 7518), (3222, 6615), (3402, 6265), (3759, 5670), (3969, 5370), (4410, 4833)]