21511269

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3469}}^1$

素因数の和:3541

約数の個数: 24

約数和(自身を含む): 34103160

約数和(自身を除く): 12591891

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3469, 6201, 10407, 31221, 45097, 135291, 183857, 405873, 551571, 1654713, 2390141, 7170423, 21511269]

約数ペア:

[(1, 21511269), (3, 7170423), (9, 2390141), (13, 1654713), (39, 551571), (53, 405873), (117, 183857), (159, 135291), (477, 45097), (689, 31221), (2067, 10407), (3469, 6201)]