21902725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3547}}^1$

素因数の和:3589

約数の個数: 24

約数和(自身を含む): 30796640

約数和(自身を除く): 8893915

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3547, 6175, 17735, 46111, 67393, 88675, 230555, 336965, 876109, 1152775, 1684825, 4380545, 21902725]

約数ペア:

[(1, 21902725), (5, 4380545), (13, 1684825), (19, 1152775), (25, 876109), (65, 336965), (95, 230555), (247, 88675), (325, 67393), (475, 46111), (1235, 17735), (3547, 6175)]