28578921

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^3\times {\mathrm{277}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 46437120

約数和(自身を除く): 17858199

約数列:

[1, 3, 7, 17, 21, 51, 119, 277, 289, 357, 831, 867, 1939, 2023, 4709, 4913, 5817, 6069, 14127, 14739, 32963, 34391, 80053, 98889, 103173, 240159, 560371, 1360901, 1681113, 4082703, 9526307, 28578921]

約数ペア:

[(1, 28578921), (3, 9526307), (7, 4082703), (17, 1681113), (21, 1360901), (51, 560371), (119, 240159), (277, 103173), (289, 98889), (357, 80053), (831, 34391), (867, 32963), (1939, 14739), (2023, 14127), (4709, 6069), (4913, 5817)]