28292901

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2801}}^1$

素因数の和:2861

約数の個数: 32

約数和(自身を含む): 47701248

約数和(自身を除く): 19408347

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 2801, 3367, 8403, 10101, 19607, 36413, 58821, 103637, 109239, 254891, 310911, 725459, 764673, 1347281, 2176377, 4041843, 9430967, 28292901]

約数ペア:

[(1, 28292901), (3, 9430967), (7, 4041843), (13, 2176377), (21, 1347281), (37, 764673), (39, 725459), (91, 310911), (111, 254891), (259, 109239), (273, 103637), (481, 58821), (777, 36413), (1443, 19607), (2801, 10101), (3367, 8403)]