21252948

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{317}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 51429504

約数和(自身を除く): 30176556

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 151, 222, 302, 317, 444, 453, 604, 634, 906, 951, 1268, 1812, 1902, 3804, 5587, 11174, 11729, 16761, 22348, 23458, 33522, 35187, 46916, 47867, 67044, 70374, 95734, 140748, 143601, 191468, 287202, 574404, 1771079, 3542158, 5313237, 7084316, 10626474, 21252948]

約数ペア:

[(1, 21252948), (2, 10626474), (3, 7084316), (4, 5313237), (6, 3542158), (12, 1771079), (37, 574404), (74, 287202), (111, 191468), (148, 143601), (151, 140748), (222, 95734), (302, 70374), (317, 67044), (444, 47867), (453, 46916), (604, 35187), (634, 33522), (906, 23458), (951, 22348), (1268, 16761), (1812, 11729), (1902, 11174), (3804, 5587)]