21878085

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^2\times {\mathrm{419}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 35693280

約数和(自身を除く): 13815195

約数列:

[1, 3, 5, 15, 59, 177, 295, 419, 885, 1257, 2095, 3481, 6285, 10443, 17405, 24721, 52215, 74163, 123605, 370815, 1458539, 4375617, 7292695, 21878085]

約数ペア:

[(1, 21878085), (3, 7292695), (5, 4375617), (15, 1458539), (59, 370815), (177, 123605), (295, 74163), (419, 52215), (885, 24721), (1257, 17405), (2095, 10443), (3481, 6285)]