20263788

素因数分解:

$2^2\times 3^2\times {\mathrm{389}}^1\times {\mathrm{1447}}^1$

素因数の和:1846

約数の個数: 36

約数和(自身を含む): 51389520

約数和(自身を除く): 31125732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 389, 778, 1167, 1447, 1556, 2334, 2894, 3501, 4341, 4668, 5788, 7002, 8682, 13023, 14004, 17364, 26046, 52092, 562883, 1125766, 1688649, 2251532, 3377298, 5065947, 6754596, 10131894, 20263788]

約数ペア:

[(1, 20263788), (2, 10131894), (3, 6754596), (4, 5065947), (6, 3377298), (9, 2251532), (12, 1688649), (18, 1125766), (36, 562883), (389, 52092), (778, 26046), (1167, 17364), (1447, 14004), (1556, 13023), (2334, 8682), (2894, 7002), (3501, 5788), (4341, 4668)]