19703984

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{3011}}^1$

素因数の和:3428

約数の個数: 20

約数和(自身を含む): 38282520

約数和(自身を除く): 18578536

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3011, 3272, 6022, 6544, 12044, 24088, 48176, 1231499, 2462998, 4925996, 9851992, 19703984]

約数ペア:

[(1, 19703984), (2, 9851992), (4, 4925996), (8, 2462998), (16, 1231499), (409, 48176), (818, 24088), (1636, 12044), (3011, 6544), (3272, 6022)]