21431288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4259}}^1$

素因数の和:4319

約数の個数: 32

約数和(自身を含む): 43707600

約数和(自身を除く): 22276312

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4259, 5032, 8518, 17036, 34072, 72403, 144806, 157583, 289612, 315166, 579224, 630332, 1260664, 2678911, 5357822, 10715644, 21431288]

約数ペア:

[(1, 21431288), (2, 10715644), (4, 5357822), (8, 2678911), (17, 1260664), (34, 630332), (37, 579224), (68, 315166), (74, 289612), (136, 157583), (148, 144806), (296, 72403), (629, 34072), (1258, 17036), (2516, 8518), (4259, 5032)]