211720465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{617}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 294741504

約数和(自身を除く): 83021039

約数列:

[1, 5, 11, 17, 55, 85, 187, 367, 617, 935, 1835, 3085, 4037, 6239, 6787, 10489, 20185, 31195, 33935, 52445, 68629, 115379, 226439, 343145, 576895, 1132195, 2490829, 3849463, 12454145, 19247315, 42344093, 211720465]

約数ペア:

[(1, 211720465), (5, 42344093), (11, 19247315), (17, 12454145), (55, 3849463), (85, 2490829), (187, 1132195), (367, 576895), (617, 343145), (935, 226439), (1835, 115379), (3085, 68629), (4037, 52445), (6239, 33935), (6787, 31195), (10489, 20185)]