21422408

素因数分解:

$2^3\times 7^3\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 48336000

約数和(自身を除く): 26913592

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 211, 259, 296, 343, 392, 422, 518, 686, 844, 1036, 1372, 1477, 1688, 1813, 2072, 2744, 2954, 3626, 5908, 7252, 7807, 10339, 11816, 12691, 14504, 15614, 20678, 25382, 31228, 41356, 50764, 54649, 62456, 72373, 82712, 101528, 109298, 144746, 218596, 289492, 382543, 437192, 578984, 765086, 1530172, 2677801, 3060344, 5355602, 10711204, 21422408]

約数ペア:

[(1, 21422408), (2, 10711204), (4, 5355602), (7, 3060344), (8, 2677801), (14, 1530172), (28, 765086), (37, 578984), (49, 437192), (56, 382543), (74, 289492), (98, 218596), (148, 144746), (196, 109298), (211, 101528), (259, 82712), (296, 72373), (343, 62456), (392, 54649), (422, 50764), (518, 41356), (686, 31228), (844, 25382), (1036, 20678), (1372, 15614), (1477, 14504), (1688, 12691), (1813, 11816), (2072, 10339), (2744, 7807), (2954, 7252), (3626, 5908)]