21996365

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 4960435

約数列:

[1, 5, 79, 233, 239, 395, 1165, 1195, 18407, 18881, 55687, 92035, 94405, 278435, 4399273, 21996365]

約数ペア:

[(1, 21996365), (5, 4399273), (79, 278435), (233, 94405), (239, 92035), (395, 55687), (1165, 18881), (1195, 18407)]