21730118

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1117}}^1$

素因数の和:1327

約数の個数: 16

約数和(自身を含む): 33325344

約数和(自身を除く): 11595226

約数列:

[1, 2, 71, 137, 142, 274, 1117, 2234, 9727, 19454, 79307, 153029, 158614, 306058, 10865059, 21730118]

約数ペア:

[(1, 21730118), (2, 10865059), (71, 306058), (137, 158614), (142, 153029), (274, 79307), (1117, 19454), (2234, 9727)]