21476539

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{821}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 25488576

約数和(自身を除く): 4012037

約数列:

[1, 7, 37, 101, 259, 707, 821, 3737, 5747, 26159, 30377, 82921, 212639, 580447, 3068077, 21476539]

約数ペア:

[(1, 21476539), (7, 3068077), (37, 580447), (101, 212639), (259, 82921), (707, 30377), (821, 26159), (3737, 5747)]