19883997

素因数分解:

$3^2\times 7^1\times {\mathrm{547}}^1\times {\mathrm{577}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 32941376

約数和(自身を除く): 13057379

約数列:

[1, 3, 7, 9, 21, 63, 547, 577, 1641, 1731, 3829, 4039, 4923, 5193, 11487, 12117, 34461, 36351, 315619, 946857, 2209333, 2840571, 6627999, 19883997]

約数ペア:

[(1, 19883997), (3, 6627999), (7, 2840571), (9, 2209333), (21, 946857), (63, 315619), (547, 36351), (577, 34461), (1641, 12117), (1731, 11487), (3829, 5193), (4039, 4923)]