20957472

素因数分解:

$2^5\times 3^2\times {\mathrm{53}}^1\times {\mathrm{1373}}^1$

素因数の和:1442

約数の個数: 72

約数和(自身を含む): 60766524

約数和(自身を除く): 39809052

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 72, 96, 106, 144, 159, 212, 288, 318, 424, 477, 636, 848, 954, 1272, 1373, 1696, 1908, 2544, 2746, 3816, 4119, 5088, 5492, 7632, 8238, 10984, 12357, 15264, 16476, 21968, 24714, 32952, 43936, 49428, 65904, 72769, 98856, 131808, 145538, 197712, 218307, 291076, 395424, 436614, 582152, 654921, 873228, 1164304, 1309842, 1746456, 2328608, 2619684, 3492912, 5239368, 6985824, 10478736, 20957472]

約数ペア:

[(1, 20957472), (2, 10478736), (3, 6985824), (4, 5239368), (6, 3492912), (8, 2619684), (9, 2328608), (12, 1746456), (16, 1309842), (18, 1164304), (24, 873228), (32, 654921), (36, 582152), (48, 436614), (53, 395424), (72, 291076), (96, 218307), (106, 197712), (144, 145538), (159, 131808), (212, 98856), (288, 72769), (318, 65904), (424, 49428), (477, 43936), (636, 32952), (848, 24714), (954, 21968), (1272, 16476), (1373, 15264), (1696, 12357), (1908, 10984), (2544, 8238), (2746, 7632), (3816, 5492), (4119, 5088)]