21164630

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1019}}^1$

素因数の和:1124

約数の個数: 32

約数和(自身を含む): 39951360

約数和(自身を除く): 18786730

約数列:

[1, 2, 5, 10, 31, 62, 67, 134, 155, 310, 335, 670, 1019, 2038, 2077, 4154, 5095, 10190, 10385, 20770, 31589, 63178, 68273, 136546, 157945, 315890, 341365, 682730, 2116463, 4232926, 10582315, 21164630]

約数ペア:

[(1, 21164630), (2, 10582315), (5, 4232926), (10, 2116463), (31, 682730), (62, 341365), (67, 315890), (134, 157945), (155, 136546), (310, 68273), (335, 63178), (670, 31589), (1019, 20770), (2038, 10385), (2077, 10190), (4154, 5095)]