217278721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{15541}}^1$

素因数の和:15624

約数の個数: 16

約数和(自身を含む): 250661376

約数和(自身を除く): 33382655

約数列:

[1, 11, 31, 41, 341, 451, 1271, 13981, 15541, 170951, 481771, 637181, 5299481, 7008991, 19752611, 217278721]

約数ペア:

[(1, 217278721), (11, 19752611), (31, 7008991), (41, 5299481), (341, 637181), (451, 481771), (1271, 170951), (13981, 15541)]