21978738

素因数分解:

$2^1\times 3^2\times {\mathrm{757}}^1\times {\mathrm{1613}}^1$

素因数の和:2378

約数の個数: 24

約数和(自身を含む): 47713068

約数和(自身を除く): 25734330

約数列:

[1, 2, 3, 6, 9, 18, 757, 1514, 1613, 2271, 3226, 4542, 4839, 6813, 9678, 13626, 14517, 29034, 1221041, 2442082, 3663123, 7326246, 10989369, 21978738]

約数ペア:

[(1, 21978738), (2, 10989369), (3, 7326246), (6, 3663123), (9, 2442082), (18, 1221041), (757, 29034), (1514, 14517), (1613, 13626), (2271, 9678), (3226, 6813), (4542, 4839)]