21499503

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5879}}^1$

素因数の和:5958

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 8982417

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5879, 17637, 135217, 311587, 405651, 934761, 7166501, 21499503]

約数ペア:

[(1, 21499503), (3, 7166501), (23, 934761), (53, 405651), (69, 311587), (159, 135217), (1219, 17637), (3657, 5879)]