17920519

素因数分解:

${\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 19445184

約数和(自身を除く): 1524665

約数列:

[1, 23, 53, 61, 241, 1219, 1403, 3233, 5543, 12773, 14701, 74359, 293779, 338123, 779153, 17920519]

約数ペア:

[(1, 17920519), (23, 779153), (53, 338123), (61, 293779), (241, 74359), (1219, 14701), (1403, 12773), (3233, 5543)]