18854661

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2729}}^1$

素因数の和:2793

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 11022459

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 2729, 6909, 8187, 19103, 57309, 128263, 133721, 384789, 401163, 897841, 2693523, 6284887, 18854661]

約数ペア:

[(1, 18854661), (3, 6284887), (7, 2693523), (21, 897841), (47, 401163), (49, 384789), (141, 133721), (147, 128263), (329, 57309), (987, 19103), (2303, 8187), (2729, 6909)]