20636145

素因数分解:

$3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{919}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 35880000

約数和(自身を除く): 15243855

約数列:

[1, 3, 5, 9, 15, 45, 499, 919, 1497, 2495, 2757, 4491, 4595, 7485, 8271, 13785, 22455, 41355, 458581, 1375743, 2292905, 4127229, 6878715, 20636145]

約数ペア:

[(1, 20636145), (3, 6878715), (5, 4127229), (9, 2292905), (15, 1375743), (45, 458581), (499, 41355), (919, 22455), (1497, 13785), (2495, 8271), (2757, 7485), (4491, 4595)]