18630171

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2713}}^1$

素因数の和:2835

約数の個数: 24

約数和(自身を含む): 31048160

約数和(自身を除く): 12417989

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 2713, 6867, 8139, 18991, 24417, 56973, 170919, 295717, 887151, 2070019, 2661453, 6210057, 18630171]

約数ペア:

[(1, 18630171), (3, 6210057), (7, 2661453), (9, 2070019), (21, 887151), (63, 295717), (109, 170919), (327, 56973), (763, 24417), (981, 18991), (2289, 8139), (2713, 6867)]