21963495

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 14614809

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 503, 615, 1065, 1509, 2515, 2911, 7545, 8733, 14555, 20623, 35713, 43665, 61869, 103115, 107139, 178565, 309345, 535695, 1464233, 4392699, 7321165, 21963495]

約数ペア:

[(1, 21963495), (3, 7321165), (5, 4392699), (15, 1464233), (41, 535695), (71, 309345), (123, 178565), (205, 107139), (213, 103115), (355, 61869), (503, 43665), (615, 35713), (1065, 20623), (1509, 14555), (2515, 8733), (2911, 7545)]