20301519

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 15502641

約数列:

[1, 3, 7, 17, 19, 21, 41, 51, 57, 73, 119, 123, 133, 219, 287, 323, 357, 399, 511, 697, 779, 861, 969, 1241, 1387, 1533, 2091, 2261, 2337, 2993, 3723, 4161, 4879, 5453, 6783, 8687, 8979, 9709, 13243, 14637, 16359, 20951, 23579, 26061, 29127, 39729, 50881, 56867, 62853, 70737, 92701, 152643, 165053, 170601, 278103, 356167, 398069, 495159, 966739, 1068501, 1194207, 2900217, 6767173, 20301519]

約数ペア:

[(1, 20301519), (3, 6767173), (7, 2900217), (17, 1194207), (19, 1068501), (21, 966739), (41, 495159), (51, 398069), (57, 356167), (73, 278103), (119, 170601), (123, 165053), (133, 152643), (219, 92701), (287, 70737), (323, 62853), (357, 56867), (399, 50881), (511, 39729), (697, 29127), (779, 26061), (861, 23579), (969, 20951), (1241, 16359), (1387, 14637), (1533, 13243), (2091, 9709), (2261, 8979), (2337, 8687), (2993, 6783), (3723, 5453), (4161, 4879)]