20687403

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{16943}}^1$

素因数の和:16994

約数の個数: 16

約数和(自身を含む): 30905856

約数和(自身を除く): 10218453

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 16943, 50829, 186373, 559119, 626891, 1880673, 6895801, 20687403]

約数ペア:

[(1, 20687403), (3, 6895801), (11, 1880673), (33, 626891), (37, 559119), (111, 186373), (407, 50829), (1221, 16943)]