20893665

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{983}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 36368640

約数和(自身を除く): 15474975

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 195, 327, 545, 983, 1417, 1635, 2949, 4251, 4915, 7085, 12779, 14745, 21255, 38337, 63895, 107147, 191685, 321441, 535735, 1392911, 1607205, 4178733, 6964555, 20893665]

約数ペア:

[(1, 20893665), (3, 6964555), (5, 4178733), (13, 1607205), (15, 1392911), (39, 535735), (65, 321441), (109, 191685), (195, 107147), (327, 63895), (545, 38337), (983, 21255), (1417, 14745), (1635, 12779), (2949, 7085), (4251, 4915)]