21234204005

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1\times {\mathrm{12479}}^1$

素因数の和:13349

約数の個数: 32

約数和(自身を含む): 29638103040

約数和(自身を除く): 8403899035

約数列:

[1, 5, 7, 35, 61, 305, 427, 797, 2135, 3985, 5579, 12479, 27895, 48617, 62395, 87353, 243085, 340319, 436765, 761219, 1701595, 3806095, 5328533, 9945763, 26642665, 49728815, 69620341, 348101705, 606691543, 3033457715, 4246840801, 21234204005]

約数ペア:

[(1, 21234204005), (5, 4246840801), (7, 3033457715), (35, 606691543), (61, 348101705), (305, 69620341), (427, 49728815), (797, 26642665), (2135, 9945763), (3985, 5328533), (5579, 3806095), (12479, 1701595), (27895, 761219), (48617, 436765), (62395, 340319), (87353, 243085)]