20444008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3709}}^1$

素因数の和:3781

約数の個数: 32

約数和(自身を含む): 42071400

約数和(自身を除く): 21627392

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3709, 5512, 7418, 14836, 29672, 48217, 96434, 192868, 196577, 385736, 393154, 786308, 1572616, 2555501, 5111002, 10222004, 20444008]

約数ペア:

[(1, 20444008), (2, 10222004), (4, 5111002), (8, 2555501), (13, 1572616), (26, 786308), (52, 393154), (53, 385736), (104, 196577), (106, 192868), (212, 96434), (424, 48217), (689, 29672), (1378, 14836), (2756, 7418), (3709, 5512)]