19841581

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 21385728

約数和(自身を除く): 1544147

約数列:

[1, 31, 41, 67, 233, 1271, 2077, 2747, 7223, 9553, 15611, 85157, 296143, 483941, 640051, 19841581]

約数ペア:

[(1, 19841581), (31, 640051), (41, 483941), (67, 296143), (233, 85157), (1271, 15611), (2077, 9553), (2747, 7223)]