20947804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2729}}^1$

素因数の和:2853

約数の個数: 24

約数和(自身を含む): 38984400

約数和(自身を除く): 18036596

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 2729, 3838, 5458, 7676, 10916, 51851, 103702, 207404, 275629, 551258, 1102516, 5236951, 10473902, 20947804]

約数ペア:

[(1, 20947804), (2, 10473902), (4, 5236951), (19, 1102516), (38, 551258), (76, 275629), (101, 207404), (202, 103702), (404, 51851), (1919, 10916), (2729, 7676), (3838, 5458)]