21375075

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2767}}^1$

素因数の和:2883

約数の個数: 24

約数和(自身を含む): 35696128

約数和(自身を除く): 14321053

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 2575, 2767, 7725, 8301, 13835, 41505, 69175, 207525, 285001, 855003, 1425005, 4275015, 7125025, 21375075]

約数ペア:

[(1, 21375075), (3, 7125025), (5, 4275015), (15, 1425005), (25, 855003), (75, 285001), (103, 207525), (309, 69175), (515, 41505), (1545, 13835), (2575, 8301), (2767, 7725)]