28807398

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{22541}}^1$

素因数の和:22620

約数の個数: 24

約数和(自身を含む): 63297936

約数和(自身を除く): 34490538

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 22541, 45082, 67623, 135246, 202869, 405738, 1600411, 3200822, 4801233, 9602466, 14403699, 28807398]

約数ペア:

[(1, 28807398), (2, 14403699), (3, 9602466), (6, 4801233), (9, 3200822), (18, 1600411), (71, 405738), (142, 202869), (213, 135246), (426, 67623), (639, 45082), (1278, 22541)]