21918885

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{63533}}^1$

素因数の和:63564

約数の個数: 16

約数和(自身を含む): 36595584

約数和(自身を除く): 14676699

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 63533, 190599, 317665, 952995, 1461259, 4383777, 7306295, 21918885]

約数ペア:

[(1, 21918885), (3, 7306295), (5, 4383777), (15, 1461259), (23, 952995), (69, 317665), (115, 190599), (345, 63533)]