20121550864

素因数分解:

$2^4\times {\mathrm{5431}}^1\times {\mathrm{231559}}^1$

素因数の和:236998

約数の個数: 20

約数和(自身を含む): 38992851520

約数和(自身を除く): 18871300656

約数列:

[1, 2, 4, 8, 16, 5431, 10862, 21724, 43448, 86896, 231559, 463118, 926236, 1852472, 3704944, 1257596929, 2515193858, 5030387716, 10060775432, 20121550864]

約数ペア:

[(1, 20121550864), (2, 10060775432), (4, 5030387716), (8, 2515193858), (16, 1257596929), (5431, 3704944), (10862, 1852472), (21724, 926236), (43448, 463118), (86896, 231559)]