20401218

素因数分解:

$2^1\times 3^2\times {\mathrm{137}}^1\times {\mathrm{8273}}^1$

素因数の和:8418

約数の個数: 24

約数和(自身を含む): 44530668

約数和(自身を除く): 24129450

約数列:

[1, 2, 3, 6, 9, 18, 137, 274, 411, 822, 1233, 2466, 8273, 16546, 24819, 49638, 74457, 148914, 1133401, 2266802, 3400203, 6800406, 10200609, 20401218]

約数ペア:

[(1, 20401218), (2, 10200609), (3, 6800406), (6, 3400203), (9, 2266802), (18, 1133401), (137, 148914), (274, 74457), (411, 49638), (822, 24819), (1233, 16546), (2466, 8273)]