21375045

素因数分解:

$3^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1097}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 37169496

約数和(自身を除く): 15794451

約数列:

[1, 3, 5, 9, 15, 45, 433, 1097, 1299, 2165, 3291, 3897, 5485, 6495, 9873, 16455, 19485, 49365, 475001, 1425003, 2375005, 4275009, 7125015, 21375045]

約数ペア:

[(1, 21375045), (3, 7125015), (5, 4275009), (9, 2375005), (15, 1425003), (45, 475001), (433, 49365), (1097, 19485), (1299, 16455), (2165, 9873), (3291, 6495), (3897, 5485)]