21840804885

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33861713}}^1$

素因数の和:33861764

約数の個数: 16

約数和(自身を含む): 35757969984

約数和(自身を除く): 13917165099

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 33861713, 101585139, 169308565, 507925695, 1456053659, 4368160977, 7280268295, 21840804885]

約数ペア:

[(1, 21840804885), (3, 7280268295), (5, 4368160977), (15, 1456053659), (43, 507925695), (129, 169308565), (215, 101585139), (645, 33861713)]