21530950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{271}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 46139904

約数和(自身を除く): 24608954

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 227, 271, 350, 454, 542, 1135, 1355, 1589, 1897, 2270, 2710, 3178, 3794, 5675, 6775, 7945, 9485, 11350, 13550, 15890, 18970, 39725, 47425, 61517, 79450, 94850, 123034, 307585, 430619, 615170, 861238, 1537925, 2153095, 3075850, 4306190, 10765475, 21530950]

約数ペア:

[(1, 21530950), (2, 10765475), (5, 4306190), (7, 3075850), (10, 2153095), (14, 1537925), (25, 861238), (35, 615170), (50, 430619), (70, 307585), (175, 123034), (227, 94850), (271, 79450), (350, 61517), (454, 47425), (542, 39725), (1135, 18970), (1355, 15890), (1589, 13550), (1897, 11350), (2270, 9485), (2710, 7945), (3178, 6775), (3794, 5675)]