18787184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2203}}^1$

素因数の和:2265

約数の個数: 40

約数和(自身を含む): 40174512

約数和(自身を除く): 21387328

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2203, 4264, 4406, 8528, 8812, 17624, 28639, 35248, 57278, 90323, 114556, 180646, 229112, 361292, 458224, 722584, 1174199, 1445168, 2348398, 4696796, 9393592, 18787184]

約数ペア:

[(1, 18787184), (2, 9393592), (4, 4696796), (8, 2348398), (13, 1445168), (16, 1174199), (26, 722584), (41, 458224), (52, 361292), (82, 229112), (104, 180646), (164, 114556), (208, 90323), (328, 57278), (533, 35248), (656, 28639), (1066, 17624), (2132, 8812), (2203, 8528), (4264, 4406)]