21212618

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1398

約数の個数: 32

約数和(自身を含む): 38581248

約数和(自身を除く): 17368630

約数列:

[1, 2, 7, 14, 31, 37, 62, 74, 217, 259, 434, 518, 1147, 1321, 2294, 2642, 8029, 9247, 16058, 18494, 40951, 48877, 81902, 97754, 286657, 342139, 573314, 684278, 1515187, 3030374, 10606309, 21212618]

約数ペア:

[(1, 21212618), (2, 10606309), (7, 3030374), (14, 1515187), (31, 684278), (37, 573314), (62, 342139), (74, 286657), (217, 97754), (259, 81902), (434, 48877), (518, 40951), (1147, 18494), (1321, 16058), (2294, 9247), (2642, 8029)]