21967127

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 28108800

約数和(自身を除く): 6141673

約数列:

[1, 7, 13, 31, 91, 169, 217, 403, 599, 1183, 2821, 4193, 5239, 7787, 18569, 36673, 54509, 101231, 129983, 241397, 708617, 1689779, 3138161, 21967127]

約数ペア:

[(1, 21967127), (7, 3138161), (13, 1689779), (31, 708617), (91, 241397), (169, 129983), (217, 101231), (403, 54509), (599, 36673), (1183, 18569), (2821, 7787), (4193, 5239)]