21915250

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{1789}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 47750040

約数和(自身を除く): 25834790

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1750, 1789, 2450, 3578, 6125, 8945, 12250, 12523, 17890, 25046, 44725, 62615, 87661, 89450, 125230, 175322, 223625, 313075, 438305, 447250, 626150, 876610, 1565375, 2191525, 3130750, 4383050, 10957625, 21915250]

約数ペア:

[(1, 21915250), (2, 10957625), (5, 4383050), (7, 3130750), (10, 2191525), (14, 1565375), (25, 876610), (35, 626150), (49, 447250), (50, 438305), (70, 313075), (98, 223625), (125, 175322), (175, 125230), (245, 89450), (250, 87661), (350, 62615), (490, 44725), (875, 25046), (1225, 17890), (1750, 12523), (1789, 12250), (2450, 8945), (3578, 6125)]