28657893

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 14887707

約数列:

[1, 3, 11, 33, 41, 59, 123, 177, 359, 451, 649, 1077, 1353, 1947, 2419, 3949, 7257, 11847, 14719, 21181, 26609, 44157, 63543, 79827, 161909, 232991, 485727, 698973, 868421, 2605263, 9552631, 28657893]

約数ペア:

[(1, 28657893), (3, 9552631), (11, 2605263), (33, 868421), (41, 698973), (59, 485727), (123, 232991), (177, 161909), (359, 79827), (451, 63543), (649, 44157), (1077, 26609), (1353, 21181), (1947, 14719), (2419, 11847), (3949, 7257)]