21160269

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2179}}^1$

素因数の和:2281

約数の個数: 24

約数和(自身を含む): 33327840

約数和(自身を除く): 12167571

約数列:

[1, 3, 9, 13, 39, 83, 117, 249, 747, 1079, 2179, 3237, 6537, 9711, 19611, 28327, 84981, 180857, 254943, 542571, 1627713, 2351141, 7053423, 21160269]

約数ペア:

[(1, 21160269), (3, 7053423), (9, 2351141), (13, 1627713), (39, 542571), (83, 254943), (117, 180857), (249, 84981), (747, 28327), (1079, 19611), (2179, 9711), (3237, 6537)]