18666856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{751}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 37900800

約数和(自身を除く): 19233944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 751, 956, 1502, 1912, 3004, 3107, 6008, 6214, 9763, 12428, 19526, 24856, 39052, 78104, 179489, 358978, 717956, 1435912, 2333357, 4666714, 9333428, 18666856]

約数ペア:

[(1, 18666856), (2, 9333428), (4, 4666714), (8, 2333357), (13, 1435912), (26, 717956), (52, 358978), (104, 179489), (239, 78104), (478, 39052), (751, 24856), (956, 19526), (1502, 12428), (1912, 9763), (3004, 6214), (3107, 6008)]