21128076

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 41771124

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 23, 34, 36, 38, 46, 51, 57, 68, 69, 76, 79, 92, 102, 114, 138, 153, 158, 171, 204, 207, 228, 237, 276, 306, 316, 323, 342, 391, 414, 437, 474, 612, 646, 684, 711, 782, 828, 874, 948, 969, 1173, 1292, 1311, 1343, 1422, 1501, 1564, 1748, 1817, 1938, 2346, 2622, 2686, 2844, 2907, 3002, 3519, 3634, 3876, 3933, 4029, 4503, 4692, 5244, 5372, 5451, 5814, 6004, 7038, 7268, 7429, 7866, 8058, 9006, 10902, 11628, 12087, 13509, 14076, 14858, 15732, 16116, 16353, 18012, 21804, 22287, 24174, 25517, 27018, 29716, 30889, 32706, 34523, 44574, 48348, 51034, 54036, 61778, 65412, 66861, 69046, 76551, 89148, 92667, 102068, 103569, 123556, 133722, 138092, 153102, 185334, 207138, 229653, 267444, 278001, 306204, 310707, 370668, 414276, 459306, 556002, 586891, 621414, 918612, 1112004, 1173782, 1242828, 1760673, 2347564, 3521346, 5282019, 7042692, 10564038, 21128076]

約数ペア:

[(1, 21128076), (2, 10564038), (3, 7042692), (4, 5282019), (6, 3521346), (9, 2347564), (12, 1760673), (17, 1242828), (18, 1173782), (19, 1112004), (23, 918612), (34, 621414), (36, 586891), (38, 556002), (46, 459306), (51, 414276), (57, 370668), (68, 310707), (69, 306204), (76, 278001), (79, 267444), (92, 229653), (102, 207138), (114, 185334), (138, 153102), (153, 138092), (158, 133722), (171, 123556), (204, 103569), (207, 102068), (228, 92667), (237, 89148), (276, 76551), (306, 69046), (316, 66861), (323, 65412), (342, 61778), (391, 54036), (414, 51034), (437, 48348), (474, 44574), (612, 34523), (646, 32706), (684, 30889), (711, 29716), (782, 27018), (828, 25517), (874, 24174), (948, 22287), (969, 21804), (1173, 18012), (1292, 16353), (1311, 16116), (1343, 15732), (1422, 14858), (1501, 14076), (1564, 13509), (1748, 12087), (1817, 11628), (1938, 10902), (2346, 9006), (2622, 8058), (2686, 7866), (2844, 7429), (2907, 7268), (3002, 7038), (3519, 6004), (3634, 5814), (3876, 5451), (3933, 5372), (4029, 5244), (4503, 4692)]