21340917

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1019}}^1$

素因数の和:1217

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 12074283

約数列:

[1, 3, 9, 13, 39, 117, 179, 537, 1019, 1611, 2327, 3057, 6981, 9171, 13247, 20943, 39741, 119223, 182401, 547203, 1641609, 2371213, 7113639, 21340917]

約数ペア:

[(1, 21340917), (3, 7113639), (9, 2371213), (13, 1641609), (39, 547203), (117, 182401), (179, 119223), (537, 39741), (1019, 20943), (1611, 13247), (2327, 9171), (3057, 6981)]