21206009

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2744071

約数列:

[1, 11, 43, 107, 419, 473, 1177, 4601, 4609, 18017, 44833, 50611, 198187, 493163, 1927819, 21206009]

約数ペア:

[(1, 21206009), (11, 1927819), (43, 493163), (107, 198187), (419, 50611), (473, 44833), (1177, 18017), (4601, 4609)]