21000586013

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 25342046208

約数和(自身を除く): 4341460195

約数列:

[1, 11, 17, 47, 107, 137, 163, 187, 517, 799, 1177, 1507, 1793, 1819, 2329, 2771, 5029, 6439, 7661, 8789, 14659, 17441, 20009, 22331, 25619, 30481, 55319, 70829, 84271, 85493, 109463, 130237, 161249, 191851, 245641, 249203, 296497, 379627, 688973, 819727, 940423, 1049557, 1204093, 1432607, 2389417, 2741233, 3261467, 4175897, 7578703, 9016997, 11545127, 11712541, 13935359, 17842469, 26283587, 40620089, 112302599, 128837951, 153288949, 196267159, 446820979, 1235328589, 1909144183, 21000586013]

約数ペア:

[(1, 21000586013), (11, 1909144183), (17, 1235328589), (47, 446820979), (107, 196267159), (137, 153288949), (163, 128837951), (187, 112302599), (517, 40620089), (799, 26283587), (1177, 17842469), (1507, 13935359), (1793, 11712541), (1819, 11545127), (2329, 9016997), (2771, 7578703), (5029, 4175897), (6439, 3261467), (7661, 2741233), (8789, 2389417), (14659, 1432607), (17441, 1204093), (20009, 1049557), (22331, 940423), (25619, 819727), (30481, 688973), (55319, 379627), (70829, 296497), (84271, 249203), (85493, 245641), (109463, 191851), (130237, 161249)]