21988054

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 38828160

約数和(自身を除く): 16840106

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 209, 418, 451, 779, 902, 1283, 1558, 2566, 8569, 14113, 17138, 24377, 28226, 48754, 52603, 105206, 268147, 536294, 578633, 999457, 1157266, 1998914, 10994027, 21988054]

約数ペア:

[(1, 21988054), (2, 10994027), (11, 1998914), (19, 1157266), (22, 999457), (38, 578633), (41, 536294), (82, 268147), (209, 105206), (418, 52603), (451, 48754), (779, 28226), (902, 24377), (1283, 17138), (1558, 14113), (2566, 8569)]