20977198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4519}}^1$

素因数の和:4743

約数の個数: 16

約数和(自身を含む): 34496640

約数和(自身を除く): 13519442

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4519, 4642, 9038, 49709, 99418, 953509, 1907018, 10488599, 20977198]

約数ペア:

[(1, 20977198), (2, 10488599), (11, 1907018), (22, 953509), (211, 99418), (422, 49709), (2321, 9038), (4519, 4642)]