20357925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2281}}^1$

素因数の和:2318

約数の個数: 48

約数和(自身を含む): 40747392

約数和(自身を除く): 20389467

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 175, 255, 357, 425, 525, 595, 1275, 1785, 2281, 2975, 6843, 8925, 11405, 15967, 34215, 38777, 47901, 57025, 79835, 116331, 171075, 193885, 239505, 271439, 399175, 581655, 814317, 969425, 1197525, 1357195, 2908275, 4071585, 6785975, 20357925]

約数ペア:

[(1, 20357925), (3, 6785975), (5, 4071585), (7, 2908275), (15, 1357195), (17, 1197525), (21, 969425), (25, 814317), (35, 581655), (51, 399175), (75, 271439), (85, 239505), (105, 193885), (119, 171075), (175, 116331), (255, 79835), (357, 57025), (425, 47901), (525, 38777), (595, 34215), (1275, 15967), (1785, 11405), (2281, 8925), (2975, 6843)]