221337395

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{7489}}^1$

素因数の和:7774

約数の個数: 16

約数和(自身を含む): 278268480

約数和(自身を除く): 56931085

約数列:

[1, 5, 23, 115, 257, 1285, 5911, 7489, 29555, 37445, 172247, 861235, 1924673, 9623365, 44267479, 221337395]

約数ペア:

[(1, 221337395), (5, 44267479), (23, 9623365), (115, 1924673), (257, 861235), (1285, 172247), (5911, 37445), (7489, 29555)]