21030512

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2677}}^1$

素因数の和:3176

約数の個数: 20

約数和(自身を含む): 40844856

約数和(自身を除く): 19814344

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2677, 3928, 5354, 7856, 10708, 21416, 42832, 1314407, 2628814, 5257628, 10515256, 21030512]

約数ペア:

[(1, 21030512), (2, 10515256), (4, 5257628), (8, 2628814), (16, 1314407), (491, 42832), (982, 21416), (1964, 10708), (2677, 7856), (3928, 5354)]