20629616

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3919}}^1$

素因数の和:3981

約数の個数: 40

約数和(自身を含む): 46663680

約数和(自身を除く): 26034064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 3919, 5264, 7838, 15676, 27433, 31352, 54866, 62704, 109732, 184193, 219464, 368386, 438928, 736772, 1289351, 1473544, 2578702, 2947088, 5157404, 10314808, 20629616]

約数ペア:

[(1, 20629616), (2, 10314808), (4, 5157404), (7, 2947088), (8, 2578702), (14, 1473544), (16, 1289351), (28, 736772), (47, 438928), (56, 368386), (94, 219464), (112, 184193), (188, 109732), (329, 62704), (376, 54866), (658, 31352), (752, 27433), (1316, 15676), (2632, 7838), (3919, 5264)]