40021961

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 52715520

約数和(自身を除く): 12693559

約数列:

[1, 7, 17, 19, 31, 119, 133, 217, 323, 527, 571, 589, 2261, 3689, 3997, 4123, 9707, 10013, 10849, 17701, 67949, 70091, 75943, 123907, 184433, 300917, 336319, 1291031, 2106419, 2354233, 5717423, 40021961]

約数ペア:

[(1, 40021961), (7, 5717423), (17, 2354233), (19, 2106419), (31, 1291031), (119, 336319), (133, 300917), (217, 184433), (323, 123907), (527, 75943), (571, 70091), (589, 67949), (2261, 17701), (3689, 10849), (3997, 10013), (4123, 9707)]