20716464

素因数分解:

$2^4\times 3^1\times {\mathrm{157}}^1\times {\mathrm{2749}}^1$

素因数の和:2917

約数の個数: 40

約数和(自身を含む): 53878000

約数和(自身を除く): 33161536

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 157, 314, 471, 628, 942, 1256, 1884, 2512, 2749, 3768, 5498, 7536, 8247, 10996, 16494, 21992, 32988, 43984, 65976, 131952, 431593, 863186, 1294779, 1726372, 2589558, 3452744, 5179116, 6905488, 10358232, 20716464]

約数ペア:

[(1, 20716464), (2, 10358232), (3, 6905488), (4, 5179116), (6, 3452744), (8, 2589558), (12, 1726372), (16, 1294779), (24, 863186), (48, 431593), (157, 131952), (314, 65976), (471, 43984), (628, 32988), (942, 21992), (1256, 16494), (1884, 10996), (2512, 8247), (2749, 7536), (3768, 5498)]