19489525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 26614368

約数和(自身を除く): 7124843

約数列:

[1, 5, 11, 25, 55, 131, 275, 541, 655, 1441, 2705, 3275, 5951, 7205, 13525, 29755, 36025, 70871, 148775, 354355, 779581, 1771775, 3897905, 19489525]

約数ペア:

[(1, 19489525), (5, 3897905), (11, 1771775), (25, 779581), (55, 354355), (131, 148775), (275, 70871), (541, 36025), (655, 29755), (1441, 13525), (2705, 7205), (3275, 5951)]