21168045

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4567}}^1$

素因数の和:4681

約数の個数: 24

約数和(自身を含む): 37055616

約数和(自身を除く): 15887571

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4567, 4635, 13701, 22835, 41103, 68505, 205515, 470401, 1411203, 2352005, 4233609, 7056015, 21168045]

約数ペア:

[(1, 21168045), (3, 7056015), (5, 4233609), (9, 2352005), (15, 1411203), (45, 470401), (103, 205515), (309, 68505), (515, 41103), (927, 22835), (1545, 13701), (4567, 4635)]