28561959

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 44577000

約数和(自身を除く): 16015041

約数列:

[1, 3, 9, 19, 57, 59, 149, 171, 177, 361, 447, 531, 1083, 1121, 1341, 2831, 3249, 3363, 8493, 8791, 10089, 21299, 25479, 26373, 53789, 63897, 79119, 161367, 167029, 191691, 484101, 501087, 1503261, 3173551, 9520653, 28561959]

約数ペア:

[(1, 28561959), (3, 9520653), (9, 3173551), (19, 1503261), (57, 501087), (59, 484101), (149, 191691), (171, 167029), (177, 161367), (361, 79119), (447, 63897), (531, 53789), (1083, 26373), (1121, 25479), (1341, 21299), (2831, 10089), (3249, 8791), (3363, 8493)]