20914838

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16340842

約数列:

[1, 2, 7, 14, 41, 82, 83, 166, 287, 439, 574, 581, 878, 1162, 3073, 3403, 6146, 6806, 17999, 23821, 35998, 36437, 47642, 72874, 125993, 251986, 255059, 510118, 1493917, 2987834, 10457419, 20914838]

約数ペア:

[(1, 20914838), (2, 10457419), (7, 2987834), (14, 1493917), (41, 510118), (82, 255059), (83, 251986), (166, 125993), (287, 72874), (439, 47642), (574, 36437), (581, 35998), (878, 23821), (1162, 17999), (3073, 6806), (3403, 6146)]