21857475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12671}}^1$

素因数の和:12707

約数の個数: 24

約数和(自身を含む): 37711872

約数和(自身を除く): 15854397

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12671, 38013, 63355, 190065, 291433, 316775, 874299, 950325, 1457165, 4371495, 7285825, 21857475]

約数ペア:

[(1, 21857475), (3, 7285825), (5, 4371495), (15, 1457165), (23, 950325), (25, 874299), (69, 316775), (75, 291433), (115, 190065), (345, 63355), (575, 38013), (1725, 12671)]