18974615

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 25408320

約数和(自身を除く): 6433705

約数列:

[1, 5, 11, 55, 79, 121, 395, 397, 605, 869, 1985, 4345, 4367, 9559, 21835, 31363, 47795, 48037, 156815, 240185, 344993, 1724965, 3794923, 18974615]

約数ペア:

[(1, 18974615), (5, 3794923), (11, 1724965), (55, 344993), (79, 240185), (121, 156815), (395, 48037), (397, 47795), (605, 31363), (869, 21835), (1985, 9559), (4345, 4367)]