21085893

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21107}}^1$

素因数の和:21153

約数の個数: 16

約数和(自身を含む): 32084160

約数和(自身を除く): 10998267

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21107, 63321, 189963, 569889, 780959, 2342877, 7028631, 21085893]

約数ペア:

[(1, 21085893), (3, 7028631), (9, 2342877), (27, 780959), (37, 569889), (111, 189963), (333, 63321), (999, 21107)]