81409991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4139}}^1$

素因数の和:4258

約数の個数: 16

約数和(自身を含む): 93895200

約数和(自身を除く): 12485209

約数列:

[1, 13, 17, 89, 221, 1157, 1513, 4139, 19669, 53807, 70363, 368371, 914719, 4788823, 6262307, 81409991]

約数ペア:

[(1, 81409991), (13, 6262307), (17, 4788823), (89, 914719), (221, 368371), (1157, 70363), (1513, 53807), (4139, 19669)]