19026995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 26526528

約数和(自身を除く): 7499533

約数列:

[1, 5, 13, 17, 65, 67, 85, 221, 257, 335, 871, 1105, 1139, 1285, 3341, 4355, 4369, 5695, 14807, 16705, 17219, 21845, 56797, 74035, 86095, 223847, 283985, 292723, 1119235, 1463615, 3805399, 19026995]

約数ペア:

[(1, 19026995), (5, 3805399), (13, 1463615), (17, 1119235), (65, 292723), (67, 283985), (85, 223847), (221, 86095), (257, 74035), (335, 56797), (871, 21845), (1105, 17219), (1139, 16705), (1285, 14807), (3341, 5695), (4355, 4369)]