21466675

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1051}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 28698560

約数和(自身を除く): 7231885

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 1051, 1075, 4085, 5255, 19969, 20425, 26275, 45193, 99845, 225965, 499225, 858667, 1129825, 4293335, 21466675]

約数ペア:

[(1, 21466675), (5, 4293335), (19, 1129825), (25, 858667), (43, 499225), (95, 225965), (215, 99845), (475, 45193), (817, 26275), (1051, 20425), (1075, 19969), (4085, 5255)]