19740765

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 34699392

約数和(自身を除く): 14958627

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 181, 543, 661, 905, 1983, 1991, 2715, 3305, 5973, 7271, 9915, 9955, 21813, 29865, 36355, 109065, 119641, 358923, 598205, 1316051, 1794615, 3948153, 6580255, 19740765]

約数ペア:

[(1, 19740765), (3, 6580255), (5, 3948153), (11, 1794615), (15, 1316051), (33, 598205), (55, 358923), (165, 119641), (181, 109065), (543, 36355), (661, 29865), (905, 21813), (1983, 9955), (1991, 9915), (2715, 7271), (3305, 5973)]