21016060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80831}}^1$

素因数の和:80853

約数の個数: 24

約数和(自身を含む): 47529216

約数和(自身を除く): 26513156

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80831, 161662, 323324, 404155, 808310, 1050803, 1616620, 2101606, 4203212, 5254015, 10508030, 21016060]

約数ペア:

[(1, 21016060), (2, 10508030), (4, 5254015), (5, 4203212), (10, 2101606), (13, 1616620), (20, 1050803), (26, 808310), (52, 404155), (65, 323324), (130, 161662), (260, 80831)]