21556312

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 41469120

約数和(自身を除く): 19912808

約数列:

[1, 2, 4, 8, 67, 131, 134, 262, 268, 307, 524, 536, 614, 1048, 1228, 2456, 8777, 17554, 20569, 35108, 40217, 41138, 70216, 80434, 82276, 160868, 164552, 321736, 2694539, 5389078, 10778156, 21556312]

約数ペア:

[(1, 21556312), (2, 10778156), (4, 5389078), (8, 2694539), (67, 321736), (131, 164552), (134, 160868), (262, 82276), (268, 80434), (307, 70216), (524, 41138), (536, 40217), (614, 35108), (1048, 20569), (1228, 17554), (2456, 8777)]