21620730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6997}}^1$

素因数の和:7110

約数の個数: 32

約数和(自身を含む): 52401024

約数和(自身を除く): 30780294

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090, 6997, 13994, 20991, 34985, 41982, 69970, 104955, 209910, 720691, 1441382, 2162073, 3603455, 4324146, 7206910, 10810365, 21620730]

約数ペア:

[(1, 21620730), (2, 10810365), (3, 7206910), (5, 4324146), (6, 3603455), (10, 2162073), (15, 1441382), (30, 720691), (103, 209910), (206, 104955), (309, 69970), (515, 41982), (618, 34985), (1030, 20991), (1545, 13994), (3090, 6997)]