20424195

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^4\times {\mathrm{31}}^1$

素因数の和:86

約数の個数: 60

約数和(自身を含む): 40198080

約数和(自身を除く): 19773885

約数列:

[1, 3, 5, 9, 11, 15, 31, 33, 45, 55, 93, 99, 121, 155, 165, 279, 341, 363, 465, 495, 605, 1023, 1089, 1331, 1395, 1705, 1815, 3069, 3751, 3993, 5115, 5445, 6655, 11253, 11979, 14641, 15345, 18755, 19965, 33759, 41261, 43923, 56265, 59895, 73205, 123783, 131769, 168795, 206305, 219615, 371349, 453871, 618915, 658845, 1361613, 1856745, 2269355, 4084839, 6808065, 20424195]

約数ペア:

[(1, 20424195), (3, 6808065), (5, 4084839), (9, 2269355), (11, 1856745), (15, 1361613), (31, 658845), (33, 618915), (45, 453871), (55, 371349), (93, 219615), (99, 206305), (121, 168795), (155, 131769), (165, 123783), (279, 73205), (341, 59895), (363, 56265), (465, 43923), (495, 41261), (605, 33759), (1023, 19965), (1089, 18755), (1331, 15345), (1395, 14641), (1705, 11979), (1815, 11253), (3069, 6655), (3751, 5445), (3993, 5115)]