21395604

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{43487}}^1$

素因数の和:43535

約数の個数: 24

約数和(自身を含む): 51141888

約数和(自身を除く): 29746284

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492, 43487, 86974, 130461, 173948, 260922, 521844, 1782967, 3565934, 5348901, 7131868, 10697802, 21395604]

約数ペア:

[(1, 21395604), (2, 10697802), (3, 7131868), (4, 5348901), (6, 3565934), (12, 1782967), (41, 521844), (82, 260922), (123, 173948), (164, 130461), (246, 86974), (492, 43487)]