9780381

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{467}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 15331680

約数和(自身を除く): 5551299

約数列:

[1, 3, 9, 13, 39, 117, 179, 467, 537, 1401, 1611, 2327, 4203, 6071, 6981, 18213, 20943, 54639, 83593, 250779, 752337, 1086709, 3260127, 9780381]

約数ペア:

[(1, 9780381), (3, 3260127), (9, 1086709), (13, 752337), (39, 250779), (117, 83593), (179, 54639), (467, 20943), (537, 18213), (1401, 6981), (1611, 6071), (2327, 4203)]