21122175

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6869}}^1$

素因数の和:6923

約数の個数: 24

約数和(自身を含む): 35778960

約数和(自身を除く): 14656785

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6869, 20607, 34345, 103035, 171725, 281629, 515175, 844887, 1408145, 4224435, 7040725, 21122175]

約数ペア:

[(1, 21122175), (3, 7040725), (5, 4224435), (15, 1408145), (25, 844887), (41, 515175), (75, 281629), (123, 171725), (205, 103035), (615, 34345), (1025, 20607), (3075, 6869)]