21079539710

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6368441}}^1$

素因数の和:6368779

約数の個数: 16

約数和(自身を含む): 38057809392

約数和(自身を除く): 16978269682

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 6368441, 12736882, 31842205, 63684410, 2107953971, 4215907942, 10539769855, 21079539710]

約数ペア:

[(1, 21079539710), (2, 10539769855), (5, 4215907942), (10, 2107953971), (331, 63684410), (662, 31842205), (1655, 12736882), (3310, 6368441)]