19991764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9377}}^1$

素因数の和:9435

約数の個数: 24

約数和(自身を含む): 38599848

約数和(自身を除く): 18608084

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9377, 18754, 37508, 121901, 243802, 384457, 487604, 768914, 1537828, 4997941, 9995882, 19991764]

約数ペア:

[(1, 19991764), (2, 9995882), (4, 4997941), (13, 1537828), (26, 768914), (41, 487604), (52, 384457), (82, 243802), (164, 121901), (533, 37508), (1066, 18754), (2132, 9377)]