18941195

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 30068640

約数和(自身を除く): 11127445

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 313, 455, 637, 665, 931, 1235, 1565, 1729, 2191, 3185, 4069, 4655, 5947, 8645, 10955, 12103, 15337, 20345, 28483, 29735, 41629, 60515, 76685, 77311, 142415, 199381, 208145, 291403, 386555, 541177, 996905, 1457015, 2705885, 3788239, 18941195]

約数ペア:

[(1, 18941195), (5, 3788239), (7, 2705885), (13, 1457015), (19, 996905), (35, 541177), (49, 386555), (65, 291403), (91, 208145), (95, 199381), (133, 142415), (245, 77311), (247, 76685), (313, 60515), (455, 41629), (637, 29735), (665, 28483), (931, 20345), (1235, 15337), (1565, 12103), (1729, 10955), (2191, 8645), (3185, 5947), (4069, 4655)]