21409544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5021}}^1$

素因数の和:5081

約数の個数: 32

約数和(自身を含む): 44294040

約数和(自身を除く): 22884496

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 5021, 10042, 20084, 40168, 65273, 130546, 205861, 261092, 411722, 522184, 823444, 1646888, 2676193, 5352386, 10704772, 21409544]

約数ペア:

[(1, 21409544), (2, 10704772), (4, 5352386), (8, 2676193), (13, 1646888), (26, 823444), (41, 522184), (52, 411722), (82, 261092), (104, 205861), (164, 130546), (328, 65273), (533, 40168), (1066, 20084), (2132, 10042), (4264, 5021)]