21945250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{2141}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 42103152

約数和(自身を除く): 20157902

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 1025, 2050, 2141, 4282, 5125, 10250, 10705, 21410, 53525, 87781, 107050, 175562, 267625, 438905, 535250, 877810, 2194525, 4389050, 10972625, 21945250]

約数ペア:

[(1, 21945250), (2, 10972625), (5, 4389050), (10, 2194525), (25, 877810), (41, 535250), (50, 438905), (82, 267625), (125, 175562), (205, 107050), (250, 87781), (410, 53525), (1025, 21410), (2050, 10705), (2141, 10250), (4282, 5125)]