18989432

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1063}}^1$

素因数の和:1116

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 26975368

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1063, 1276, 1624, 2126, 2233, 2552, 4252, 4466, 7441, 8504, 8932, 11693, 14882, 17864, 23386, 29764, 30827, 46772, 59528, 61654, 81851, 93544, 123308, 163702, 215789, 246616, 327404, 339097, 431578, 654808, 678194, 863156, 1356388, 1726312, 2373679, 2712776, 4747358, 9494716, 18989432]

約数ペア:

[(1, 18989432), (2, 9494716), (4, 4747358), (7, 2712776), (8, 2373679), (11, 1726312), (14, 1356388), (22, 863156), (28, 678194), (29, 654808), (44, 431578), (56, 339097), (58, 327404), (77, 246616), (88, 215789), (116, 163702), (154, 123308), (203, 93544), (232, 81851), (308, 61654), (319, 59528), (406, 46772), (616, 30827), (638, 29764), (812, 23386), (1063, 17864), (1276, 14882), (1624, 11693), (2126, 8932), (2233, 8504), (2552, 7441), (4252, 4466)]