21917380

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{3457}}^1$

素因数の和:3783

約数の個数: 24

約数和(自身を含む): 46185048

約数和(自身を除く): 24267668

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 3457, 6340, 6914, 13828, 17285, 34570, 69140, 1095869, 2191738, 4383476, 5479345, 10958690, 21917380]

約数ペア:

[(1, 21917380), (2, 10958690), (4, 5479345), (5, 4383476), (10, 2191738), (20, 1095869), (317, 69140), (634, 34570), (1268, 17285), (1585, 13828), (3170, 6914), (3457, 6340)]