18618908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 41330688

約数和(自身を除く): 22711780

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 61, 77, 122, 154, 244, 308, 427, 671, 854, 991, 1342, 1708, 1982, 2684, 3964, 4697, 6937, 9394, 10901, 13874, 18788, 21802, 27748, 43604, 60451, 76307, 120902, 152614, 241804, 305228, 423157, 664961, 846314, 1329922, 1692628, 2659844, 4654727, 9309454, 18618908]

約数ペア:

[(1, 18618908), (2, 9309454), (4, 4654727), (7, 2659844), (11, 1692628), (14, 1329922), (22, 846314), (28, 664961), (44, 423157), (61, 305228), (77, 241804), (122, 152614), (154, 120902), (244, 76307), (308, 60451), (427, 43604), (671, 27748), (854, 21802), (991, 18788), (1342, 13874), (1708, 10901), (1982, 9394), (2684, 6937), (3964, 4697)]