21498867

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3467}}^1$

素因数の和:3539

約数の個数: 24

約数和(自身を含む): 34083504

約数和(自身を除く): 12584637

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3467, 6201, 10401, 31203, 45071, 135213, 183751, 405639, 551253, 1653759, 2388763, 7166289, 21498867]

約数ペア:

[(1, 21498867), (3, 7166289), (9, 2388763), (13, 1653759), (39, 551253), (53, 405639), (117, 183751), (159, 135213), (477, 45071), (689, 31203), (2067, 10401), (3467, 6201)]