21182220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117679}}^1$

素因数の和:117694

約数の個数: 36

約数和(自身を含む): 64253280

約数和(自身を除く): 43071060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117679, 235358, 353037, 470716, 588395, 706074, 1059111, 1176790, 1412148, 1765185, 2118222, 2353580, 3530370, 4236444, 5295555, 7060740, 10591110, 21182220]

約数ペア:

[(1, 21182220), (2, 10591110), (3, 7060740), (4, 5295555), (5, 4236444), (6, 3530370), (9, 2353580), (10, 2118222), (12, 1765185), (15, 1412148), (18, 1176790), (20, 1059111), (30, 706074), (36, 588395), (45, 470716), (60, 353037), (90, 235358), (180, 117679)]