20824866

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 25877790

約数列:

[1, 2, 3, 6, 9, 18, 53, 83, 106, 159, 166, 249, 263, 318, 477, 498, 526, 747, 789, 954, 1494, 1578, 2367, 4399, 4734, 8798, 13197, 13939, 21829, 26394, 27878, 39591, 41817, 43658, 65487, 79182, 83634, 125451, 130974, 196461, 250902, 392922, 1156937, 2313874, 3470811, 6941622, 10412433, 20824866]

約数ペア:

[(1, 20824866), (2, 10412433), (3, 6941622), (6, 3470811), (9, 2313874), (18, 1156937), (53, 392922), (83, 250902), (106, 196461), (159, 130974), (166, 125451), (249, 83634), (263, 79182), (318, 65487), (477, 43658), (498, 41817), (526, 39591), (747, 27878), (789, 26394), (954, 21829), (1494, 13939), (1578, 13197), (2367, 8798), (4399, 4734)]