21195153

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3331}}^1$

素因数の和:3445

約数の個数: 24

約数和(自身を含む): 35345856

約数和(自身を除く): 14150703

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3331, 6363, 9993, 23317, 29979, 69951, 209853, 336431, 1009293, 2355017, 3027879, 7065051, 21195153]

約数ペア:

[(1, 21195153), (3, 7065051), (7, 3027879), (9, 2355017), (21, 1009293), (63, 336431), (101, 209853), (303, 69951), (707, 29979), (909, 23317), (2121, 9993), (3331, 6363)]