17991784

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2887}}^1$

素因数の和:2953

約数の個数: 32

約数和(自身を含む): 36388800

約数和(自身を除く): 18397016

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 2887, 3116, 5774, 6232, 11548, 23096, 54853, 109706, 118367, 219412, 236734, 438824, 473468, 946936, 2248973, 4497946, 8995892, 17991784]

約数ペア:

[(1, 17991784), (2, 8995892), (4, 4497946), (8, 2248973), (19, 946936), (38, 473468), (41, 438824), (76, 236734), (82, 219412), (152, 118367), (164, 109706), (328, 54853), (779, 23096), (1558, 11548), (2887, 6232), (3116, 5774)]