20126223

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1$

素因数の和:260

約数の個数: 36

約数和(自身を含む): 32530680

約数和(自身を除く): 12404457

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 179, 279, 403, 537, 961, 1209, 1611, 2327, 2883, 3627, 5549, 6981, 8649, 12493, 16647, 20943, 37479, 49941, 72137, 112437, 172019, 216411, 516057, 649233, 1548171, 2236247, 6708741, 20126223]

約数ペア:

[(1, 20126223), (3, 6708741), (9, 2236247), (13, 1548171), (31, 649233), (39, 516057), (93, 216411), (117, 172019), (179, 112437), (279, 72137), (403, 49941), (537, 37479), (961, 20943), (1209, 16647), (1611, 12493), (2327, 8649), (2883, 6981), (3627, 5549)]