28948689

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1129}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 53589120

約数和(自身を除く): 24640431

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 111, 231, 259, 333, 407, 693, 777, 1129, 1221, 2331, 2849, 3387, 3663, 7903, 8547, 10161, 12419, 23709, 25641, 37257, 41773, 71127, 86933, 111771, 125319, 260799, 292411, 375957, 459503, 782397, 877233, 1378509, 2631699, 3216521, 4135527, 9649563, 28948689]

約数ペア:

[(1, 28948689), (3, 9649563), (7, 4135527), (9, 3216521), (11, 2631699), (21, 1378509), (33, 877233), (37, 782397), (63, 459503), (77, 375957), (99, 292411), (111, 260799), (231, 125319), (259, 111771), (333, 86933), (407, 71127), (693, 41773), (777, 37257), (1129, 25641), (1221, 23709), (2331, 12419), (2849, 10161), (3387, 8547), (3663, 7903)]