21179608

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{167}}^1\times {\mathrm{191}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 19462952

約数列:

[1, 2, 4, 8, 83, 166, 167, 191, 332, 334, 382, 664, 668, 764, 1336, 1528, 13861, 15853, 27722, 31706, 31897, 55444, 63412, 63794, 110888, 126824, 127588, 255176, 2647451, 5294902, 10589804, 21179608]

約数ペア:

[(1, 21179608), (2, 10589804), (4, 5294902), (8, 2647451), (83, 255176), (166, 127588), (167, 126824), (191, 110888), (332, 63794), (334, 63412), (382, 55444), (664, 31897), (668, 31706), (764, 27722), (1336, 15853), (1528, 13861)]