19917378

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1811}}^1$

素因数の和:1879

約数の個数: 48

約数和(自身を含む): 47488896

約数和(自身を除く): 27571518

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 78, 94, 117, 141, 234, 282, 423, 611, 846, 1222, 1811, 1833, 3622, 3666, 5433, 5499, 10866, 10998, 16299, 23543, 32598, 47086, 70629, 85117, 141258, 170234, 211887, 255351, 423774, 510702, 766053, 1106521, 1532106, 2213042, 3319563, 6639126, 9958689, 19917378]

約数ペア:

[(1, 19917378), (2, 9958689), (3, 6639126), (6, 3319563), (9, 2213042), (13, 1532106), (18, 1106521), (26, 766053), (39, 510702), (47, 423774), (78, 255351), (94, 211887), (117, 170234), (141, 141258), (234, 85117), (282, 70629), (423, 47086), (611, 32598), (846, 23543), (1222, 16299), (1811, 10998), (1833, 10866), (3622, 5499), (3666, 5433)]