21254380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151817}}^1$

素因数の和:151833

約数の個数: 24

約数和(自身を含む): 51010848

約数和(自身を除く): 29756468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151817, 303634, 607268, 759085, 1062719, 1518170, 2125438, 3036340, 4250876, 5313595, 10627190, 21254380]

約数ペア:

[(1, 21254380), (2, 10627190), (4, 5313595), (5, 4250876), (7, 3036340), (10, 2125438), (14, 1518170), (20, 1062719), (28, 759085), (35, 607268), (70, 303634), (140, 151817)]