21908615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2239}}^1$

素因数の和:2366

約数の個数: 16

約数和(自身を含む): 27955200

約数和(自身を除く): 6046585

約数列:

[1, 5, 19, 95, 103, 515, 1957, 2239, 9785, 11195, 42541, 212705, 230617, 1153085, 4381723, 21908615]

約数ペア:

[(1, 21908615), (5, 4381723), (19, 1153085), (95, 230617), (103, 212705), (515, 42541), (1957, 11195), (2239, 9785)]