19764316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 41136480

約数和(自身を除く): 21372164

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 109, 143, 218, 286, 317, 436, 572, 634, 1199, 1268, 1417, 2398, 2834, 3487, 4121, 4796, 5668, 6974, 8242, 13948, 15587, 16484, 31174, 34553, 45331, 62348, 69106, 90662, 138212, 181324, 380083, 449189, 760166, 898378, 1520332, 1796756, 4941079, 9882158, 19764316]

約数ペア:

[(1, 19764316), (2, 9882158), (4, 4941079), (11, 1796756), (13, 1520332), (22, 898378), (26, 760166), (44, 449189), (52, 380083), (109, 181324), (143, 138212), (218, 90662), (286, 69106), (317, 62348), (436, 45331), (572, 34553), (634, 31174), (1199, 16484), (1268, 15587), (1417, 13948), (2398, 8242), (2834, 6974), (3487, 5668), (4121, 4796)]