19765798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 34128864

約数和(自身を除く): 14363066

約数列:

[1, 2, 13, 17, 26, 34, 197, 221, 227, 394, 442, 454, 2561, 2951, 3349, 3859, 5122, 5902, 6698, 7718, 43537, 44719, 50167, 87074, 89438, 100334, 581347, 760223, 1162694, 1520446, 9882899, 19765798]

約数ペア:

[(1, 19765798), (2, 9882899), (13, 1520446), (17, 1162694), (26, 760223), (34, 581347), (197, 100334), (221, 89438), (227, 87074), (394, 50167), (442, 44719), (454, 43537), (2561, 7718), (2951, 6698), (3349, 5902), (3859, 5122)]