21684476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{1229}}^1$

素因数の和:1645

約数の個数: 24

約数和(自身を含む): 41534640

約数和(自身を除く): 19850164

約数列:

[1, 2, 4, 11, 22, 44, 401, 802, 1229, 1604, 2458, 4411, 4916, 8822, 13519, 17644, 27038, 54076, 492829, 985658, 1971316, 5421119, 10842238, 21684476]

約数ペア:

[(1, 21684476), (2, 10842238), (4, 5421119), (11, 1971316), (22, 985658), (44, 492829), (401, 54076), (802, 27038), (1229, 17644), (1604, 13519), (2458, 8822), (4411, 4916)]