21112104

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 36222936

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 157, 312, 314, 431, 471, 628, 862, 942, 1256, 1293, 1724, 1884, 2041, 2586, 3448, 3768, 4082, 5172, 5603, 6123, 8164, 10344, 11206, 12246, 16328, 16809, 22412, 24492, 33618, 44824, 48984, 67236, 67667, 134472, 135334, 203001, 270668, 406002, 541336, 812004, 879671, 1624008, 1759342, 2639013, 3518684, 5278026, 7037368, 10556052, 21112104]

約数ペア:

[(1, 21112104), (2, 10556052), (3, 7037368), (4, 5278026), (6, 3518684), (8, 2639013), (12, 1759342), (13, 1624008), (24, 879671), (26, 812004), (39, 541336), (52, 406002), (78, 270668), (104, 203001), (156, 135334), (157, 134472), (312, 67667), (314, 67236), (431, 48984), (471, 44824), (628, 33618), (862, 24492), (942, 22412), (1256, 16809), (1293, 16328), (1724, 12246), (1884, 11206), (2041, 10344), (2586, 8164), (3448, 6123), (3768, 5603), (4082, 5172)]