20506396

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6581}}^1$

素因数の和:6645

約数の個数: 24

約数和(自身を含む): 38702160

約数和(自身を除く): 18195764

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6581, 13162, 26324, 125039, 250078, 269821, 500156, 539642, 1079284, 5126599, 10253198, 20506396]

約数ペア:

[(1, 20506396), (2, 10253198), (4, 5126599), (19, 1079284), (38, 539642), (41, 500156), (76, 269821), (82, 250078), (164, 125039), (779, 26324), (1558, 13162), (3116, 6581)]