21021804

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4201}}^1$

素因数の和:4350

約数の個数: 36

約数和(自身を含む): 53533480

約数和(自身を除く): 32511676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 4201, 5004, 8402, 12603, 16804, 25206, 37809, 50412, 75618, 151236, 583939, 1167878, 1751817, 2335756, 3503634, 5255451, 7007268, 10510902, 21021804]

約数ペア:

[(1, 21021804), (2, 10510902), (3, 7007268), (4, 5255451), (6, 3503634), (9, 2335756), (12, 1751817), (18, 1167878), (36, 583939), (139, 151236), (278, 75618), (417, 50412), (556, 37809), (834, 25206), (1251, 16804), (1668, 12603), (2502, 8402), (4201, 5004)]