20702978

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2549}}^1$

素因数の和:2713

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 11610622

約数列:

[1, 2, 31, 62, 131, 262, 2549, 4061, 5098, 8122, 79019, 158038, 333919, 667838, 10351489, 20702978]

約数ペア:

[(1, 20702978), (2, 10351489), (31, 667838), (62, 333919), (131, 158038), (262, 79019), (2549, 8122), (4061, 5098)]