21142248

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 55211520

約数和(自身を除く): 34069272

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 157, 181, 186, 248, 314, 362, 372, 471, 543, 628, 724, 744, 942, 1086, 1256, 1448, 1884, 2172, 3768, 4344, 4867, 5611, 9734, 11222, 14601, 16833, 19468, 22444, 28417, 29202, 33666, 38936, 44888, 56834, 58404, 67332, 85251, 113668, 116808, 134664, 170502, 227336, 341004, 682008, 880927, 1761854, 2642781, 3523708, 5285562, 7047416, 10571124, 21142248]

約数ペア:

[(1, 21142248), (2, 10571124), (3, 7047416), (4, 5285562), (6, 3523708), (8, 2642781), (12, 1761854), (24, 880927), (31, 682008), (62, 341004), (93, 227336), (124, 170502), (157, 134664), (181, 116808), (186, 113668), (248, 85251), (314, 67332), (362, 58404), (372, 56834), (471, 44888), (543, 38936), (628, 33666), (724, 29202), (744, 28417), (942, 22444), (1086, 19468), (1256, 16833), (1448, 14601), (1884, 11222), (2172, 9734), (3768, 5611), (4344, 4867)]