21368505

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{49123}}^1$

素因数の和:49160

約数の個数: 16

約数和(自身を含む): 35369280

約数和(自身を除く): 14000775

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 49123, 147369, 245615, 736845, 1424567, 4273701, 7122835, 21368505]

約数ペア:

[(1, 21368505), (3, 7122835), (5, 4273701), (15, 1424567), (29, 736845), (87, 245615), (145, 147369), (435, 49123)]