19779585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1583}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 39004416

約数和(自身を除く): 19224831

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 357, 595, 735, 833, 1583, 1785, 2499, 4165, 4749, 7915, 11081, 12495, 23745, 26911, 33243, 55405, 77567, 80733, 134555, 166215, 188377, 232701, 387835, 403665, 565131, 941885, 1163505, 1318639, 2825655, 3955917, 6593195, 19779585]

約数ペア:

[(1, 19779585), (3, 6593195), (5, 3955917), (7, 2825655), (15, 1318639), (17, 1163505), (21, 941885), (35, 565131), (49, 403665), (51, 387835), (85, 232701), (105, 188377), (119, 166215), (147, 134555), (245, 80733), (255, 77567), (357, 55405), (595, 33243), (735, 26911), (833, 23745), (1583, 12495), (1785, 11081), (2499, 7915), (4165, 4749)]