21997818

素因数分解:

$2^1\times 3^5\times {\mathrm{45263}}^1$

素因数の和:45280

約数の個数: 24

約数和(自身を含む): 49428288

約数和(自身を除く): 27430470

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 45263, 90526, 135789, 271578, 407367, 814734, 1222101, 2444202, 3666303, 7332606, 10998909, 21997818]

約数ペア:

[(1, 21997818), (2, 10998909), (3, 7332606), (6, 3666303), (9, 2444202), (18, 1222101), (27, 814734), (54, 407367), (81, 271578), (162, 135789), (243, 90526), (486, 45263)]