18995655141

素因数分解:

$3^4\times {\mathrm{421}}^1\times {\mathrm{557041}}^1$

素因数の和:557474

約数の個数: 20

約数和(自身を含む): 28443678604

約数和(自身を除く): 9448023463

約数列:

[1, 3, 9, 27, 81, 421, 1263, 3789, 11367, 34101, 557041, 1671123, 5013369, 15040107, 45120321, 234514261, 703542783, 2110628349, 6331885047, 18995655141]

約数ペア:

[(1, 18995655141), (3, 6331885047), (9, 2110628349), (27, 703542783), (81, 234514261), (421, 45120321), (1263, 15040107), (3789, 5013369), (11367, 1671123), (34101, 557041)]