21215245

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{2797}}^1$

素因数の和:2880

約数の個数: 16

約数和(自身を含む): 26793648

約数和(自身を除く): 5578403

約数列:

[1, 5, 37, 41, 185, 205, 1517, 2797, 7585, 13985, 103489, 114677, 517445, 573385, 4243049, 21215245]

約数ペア:

[(1, 21215245), (5, 4243049), (37, 573385), (41, 517445), (185, 114677), (205, 103489), (1517, 13985), (2797, 7585)]