28785081

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 44190720

約数和(自身を除く): 15405639

約数列:

[1, 3, 13, 29, 31, 39, 87, 93, 377, 403, 821, 899, 1131, 1209, 2463, 2697, 10673, 11687, 23809, 25451, 32019, 35061, 71427, 76353, 309517, 330863, 738079, 928551, 992589, 2214237, 9595027, 28785081]

約数ペア:

[(1, 28785081), (3, 9595027), (13, 2214237), (29, 992589), (31, 928551), (39, 738079), (87, 330863), (93, 309517), (377, 76353), (403, 71427), (821, 35061), (899, 32019), (1131, 25451), (1209, 23809), (2463, 11687), (2697, 10673)]