20009991

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1\times {\mathrm{397}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 27337824

約数和(自身を除く): 7327833

約数列:

[1, 3, 53, 159, 317, 397, 951, 1191, 16801, 21041, 50403, 63123, 125849, 377547, 6669997, 20009991]

約数ペア:

[(1, 20009991), (3, 6669997), (53, 377547), (159, 125849), (317, 63123), (397, 50403), (951, 21041), (1191, 16801)]