21727748

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8719}}^1$

素因数の和:8819

約数の個数: 24

約数和(自身を含む): 43948800

約数和(自身を除く): 22221052

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8719, 17438, 34876, 61033, 122066, 244132, 775991, 1551982, 3103964, 5431937, 10863874, 21727748]

約数ペア:

[(1, 21727748), (2, 10863874), (4, 5431937), (7, 3103964), (14, 1551982), (28, 775991), (89, 244132), (178, 122066), (356, 61033), (623, 34876), (1246, 17438), (2492, 8719)]