18414448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:641

約数の個数: 40

約数和(自身を含む): 38691968

約数和(自身を除く): 20277520

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 223, 397, 446, 794, 892, 1588, 1784, 2899, 3176, 3568, 5161, 5798, 6352, 10322, 11596, 20644, 23192, 41288, 46384, 82576, 88531, 177062, 354124, 708248, 1150903, 1416496, 2301806, 4603612, 9207224, 18414448]

約数ペア:

[(1, 18414448), (2, 9207224), (4, 4603612), (8, 2301806), (13, 1416496), (16, 1150903), (26, 708248), (52, 354124), (104, 177062), (208, 88531), (223, 82576), (397, 46384), (446, 41288), (794, 23192), (892, 20644), (1588, 11596), (1784, 10322), (2899, 6352), (3176, 5798), (3568, 5161)]