21758360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41843}}^1$

素因数の和:41867

約数の個数: 32

約数和(自身を含む): 52723440

約数和(自身を除く): 30965080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41843, 83686, 167372, 209215, 334744, 418430, 543959, 836860, 1087918, 1673720, 2175836, 2719795, 4351672, 5439590, 10879180, 21758360]

約数ペア:

[(1, 21758360), (2, 10879180), (4, 5439590), (5, 4351672), (8, 2719795), (10, 2175836), (13, 1673720), (20, 1087918), (26, 836860), (40, 543959), (52, 418430), (65, 334744), (104, 209215), (130, 167372), (260, 83686), (520, 41843)]