19657708

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 41690880

約数和(自身を除く): 22033172

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 563, 602, 812, 1126, 1204, 1247, 2252, 2494, 3941, 4988, 7882, 8729, 15764, 16327, 17458, 24209, 32654, 34916, 48418, 65308, 96836, 114289, 169463, 228578, 338926, 457156, 677852, 702061, 1404122, 2808244, 4914427, 9828854, 19657708]

約数ペア:

[(1, 19657708), (2, 9828854), (4, 4914427), (7, 2808244), (14, 1404122), (28, 702061), (29, 677852), (43, 457156), (58, 338926), (86, 228578), (116, 169463), (172, 114289), (203, 96836), (301, 65308), (406, 48418), (563, 34916), (602, 32654), (812, 24209), (1126, 17458), (1204, 16327), (1247, 15764), (2252, 8729), (2494, 7882), (3941, 4988)]