21920274

素因数分解:

$2^1\times 3^3\times {\mathrm{137}}^1\times {\mathrm{2963}}^1$

素因数の和:3111

約数の個数: 32

約数和(自身を含む): 49083840

約数和(自身を除く): 27163566

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 137, 274, 411, 822, 1233, 2466, 2963, 3699, 5926, 7398, 8889, 17778, 26667, 53334, 80001, 160002, 405931, 811862, 1217793, 2435586, 3653379, 7306758, 10960137, 21920274]

約数ペア:

[(1, 21920274), (2, 10960137), (3, 7306758), (6, 3653379), (9, 2435586), (18, 1217793), (27, 811862), (54, 405931), (137, 160002), (274, 80001), (411, 53334), (822, 26667), (1233, 17778), (2466, 8889), (2963, 7398), (3699, 5926)]