21790406

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{709}}^1$

素因数の和:860

約数の個数: 24

約数和(自身を含む): 36261120

約数和(自身を除く): 14470714

約数列:

[1, 2, 11, 22, 121, 127, 242, 254, 709, 1397, 1418, 2794, 7799, 15367, 15598, 30734, 85789, 90043, 171578, 180086, 990473, 1980946, 10895203, 21790406]

約数ペア:

[(1, 21790406), (2, 10895203), (11, 1980946), (22, 990473), (121, 180086), (127, 171578), (242, 90043), (254, 85789), (709, 30734), (1397, 15598), (1418, 15367), (2794, 7799)]