21960428

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5897}}^1$

素因数の和:5934

約数の個数: 36

約数和(自身を含む): 47066040

約数和(自身を除く): 25105612

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5897, 11794, 23588, 41279, 82558, 112043, 165116, 224086, 288953, 448172, 577906, 784301, 1155812, 1568602, 3137204, 5490107, 10980214, 21960428]

約数ペア:

[(1, 21960428), (2, 10980214), (4, 5490107), (7, 3137204), (14, 1568602), (19, 1155812), (28, 784301), (38, 577906), (49, 448172), (76, 288953), (98, 224086), (133, 165116), (196, 112043), (266, 82558), (532, 41279), (931, 23588), (1862, 11794), (3724, 5897)]