21728772

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1601}}^1$

素因数の和:1653

約数の個数: 72

約数和(自身を含む): 61228440

約数和(自身を除く): 39499668

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1508, 1601, 2262, 3202, 3393, 4524, 4803, 6404, 6786, 9606, 13572, 14409, 19212, 20813, 28818, 41626, 46429, 57636, 62439, 83252, 92858, 124878, 139287, 185716, 187317, 249756, 278574, 374634, 417861, 557148, 603577, 749268, 835722, 1207154, 1671444, 1810731, 2414308, 3621462, 5432193, 7242924, 10864386, 21728772]

約数ペア:

[(1, 21728772), (2, 10864386), (3, 7242924), (4, 5432193), (6, 3621462), (9, 2414308), (12, 1810731), (13, 1671444), (18, 1207154), (26, 835722), (29, 749268), (36, 603577), (39, 557148), (52, 417861), (58, 374634), (78, 278574), (87, 249756), (116, 187317), (117, 185716), (156, 139287), (174, 124878), (234, 92858), (261, 83252), (348, 62439), (377, 57636), (468, 46429), (522, 41626), (754, 28818), (1044, 20813), (1131, 19212), (1508, 14409), (1601, 13572), (2262, 9606), (3202, 6786), (3393, 6404), (4524, 4803)]