20983235

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 10369597

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 431, 455, 535, 749, 1391, 2155, 3017, 3745, 5603, 6955, 9737, 15085, 28015, 39221, 46117, 48685, 196105, 230585, 322819, 599521, 1614095, 2997605, 4196647, 20983235]

約数ペア:

[(1, 20983235), (5, 4196647), (7, 2997605), (13, 1614095), (35, 599521), (65, 322819), (91, 230585), (107, 196105), (431, 48685), (455, 46117), (535, 39221), (749, 28015), (1391, 15085), (2155, 9737), (3017, 6955), (3745, 5603)]