21975838

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{8243}}^1$

素因数の和:8319

約数の個数: 16

約数和(自身を含む): 34822656

約数和(自身を除く): 12846818

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 8243, 16486, 255533, 354449, 511066, 708898, 10987919, 21975838]

約数ペア:

[(1, 21975838), (2, 10987919), (31, 708898), (43, 511066), (62, 354449), (86, 255533), (1333, 16486), (2666, 8243)]