19890741

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9623}}^1$

素因数の和:9692

約数の個数: 16

約数和(自身を含む): 29102976

約数和(自身を除く): 9212235

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 9623, 28869, 125099, 375297, 510019, 1530057, 6630247, 19890741]

約数ペア:

[(1, 19890741), (3, 6630247), (13, 1530057), (39, 510019), (53, 375297), (159, 125099), (689, 28869), (2067, 9623)]