21995649

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5081}}^1$

素因数の和:5137

約数の個数: 24

約数和(自身を含む): 35147112

約数和(自身を除く): 13151463

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 481, 1443, 4329, 5081, 15243, 45729, 66053, 187997, 198159, 563991, 594477, 1691973, 2443961, 7331883, 21995649]

約数ペア:

[(1, 21995649), (3, 7331883), (9, 2443961), (13, 1691973), (37, 594477), (39, 563991), (111, 198159), (117, 187997), (333, 66053), (481, 45729), (1443, 15243), (4329, 5081)]