21817975

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:379

約数の個数: 24

約数和(自身を含む): 28177760

約数和(自身を除く): 6359785

約数列:

[1, 5, 25, 37, 103, 185, 229, 515, 925, 1145, 2575, 3811, 5725, 8473, 19055, 23587, 42365, 95275, 117935, 211825, 589675, 872719, 4363595, 21817975]

約数ペア:

[(1, 21817975), (5, 4363595), (25, 872719), (37, 589675), (103, 211825), (185, 117935), (229, 95275), (515, 42365), (925, 23587), (1145, 19055), (2575, 8473), (3811, 5725)]