211886521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{161869}}^1$

素因数の和:161904

約数の個数: 16

約数和(自身を含む): 279711360

約数和(自身を除く): 67824839

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 161869, 1133083, 1780559, 2751773, 12463913, 19262411, 30269503, 211886521]

約数ペア:

[(1, 211886521), (7, 30269503), (11, 19262411), (17, 12463913), (77, 2751773), (119, 1780559), (187, 1133083), (1309, 161869)]