20976928

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2585

約数の個数: 48

約数和(自身を含む): 48492864

約数和(自身を除く): 27515936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 74, 112, 148, 224, 259, 296, 518, 592, 1036, 1184, 2072, 2531, 4144, 5062, 8288, 10124, 17717, 20248, 35434, 40496, 70868, 80992, 93647, 141736, 187294, 283472, 374588, 566944, 655529, 749176, 1311058, 1498352, 2622116, 2996704, 5244232, 10488464, 20976928]

約数ペア:

[(1, 20976928), (2, 10488464), (4, 5244232), (7, 2996704), (8, 2622116), (14, 1498352), (16, 1311058), (28, 749176), (32, 655529), (37, 566944), (56, 374588), (74, 283472), (112, 187294), (148, 141736), (224, 93647), (259, 80992), (296, 70868), (518, 40496), (592, 35434), (1036, 20248), (1184, 17717), (2072, 10124), (2531, 8288), (4144, 5062)]