18817312

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:761

約数の個数: 48

約数和(自身を含む): 39759552

約数和(自身を除く): 20942240

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 74, 92, 148, 184, 296, 368, 592, 691, 736, 851, 1184, 1382, 1702, 2764, 3404, 5528, 6808, 11056, 13616, 15893, 22112, 25567, 27232, 31786, 51134, 63572, 102268, 127144, 204536, 254288, 409072, 508576, 588041, 818144, 1176082, 2352164, 4704328, 9408656, 18817312]

約数ペア:

[(1, 18817312), (2, 9408656), (4, 4704328), (8, 2352164), (16, 1176082), (23, 818144), (32, 588041), (37, 508576), (46, 409072), (74, 254288), (92, 204536), (148, 127144), (184, 102268), (296, 63572), (368, 51134), (592, 31786), (691, 27232), (736, 25567), (851, 22112), (1184, 15893), (1382, 13616), (1702, 11056), (2764, 6808), (3404, 5528)]