20959895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 30093120

約数和(自身を除く): 9133225

約数列:

[1, 5, 11, 17, 29, 55, 85, 145, 187, 319, 493, 773, 935, 1595, 2465, 3865, 5423, 8503, 13141, 22417, 27115, 42515, 65705, 112085, 144551, 246587, 381089, 722755, 1232935, 1905445, 4191979, 20959895]

約数ペア:

[(1, 20959895), (5, 4191979), (11, 1905445), (17, 1232935), (29, 722755), (55, 381089), (85, 246587), (145, 144551), (187, 112085), (319, 65705), (493, 42515), (773, 27115), (935, 22417), (1595, 13141), (2465, 8503), (3865, 5423)]