21516469

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 24137344

約数和(自身を除く): 2620875

約数列:

[1, 13, 43, 61, 559, 631, 793, 2623, 8203, 27133, 34099, 38491, 352729, 500383, 1655113, 21516469]

約数ペア:

[(1, 21516469), (13, 1655113), (43, 500383), (61, 352729), (559, 38491), (631, 34099), (793, 27133), (2623, 8203)]