21186540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117703}}^1$

素因数の和:117718

約数の個数: 36

約数和(自身を含む): 64266384

約数和(自身を除く): 43079844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117703, 235406, 353109, 470812, 588515, 706218, 1059327, 1177030, 1412436, 1765545, 2118654, 2354060, 3531090, 4237308, 5296635, 7062180, 10593270, 21186540]

約数ペア:

[(1, 21186540), (2, 10593270), (3, 7062180), (4, 5296635), (5, 4237308), (6, 3531090), (9, 2354060), (10, 2118654), (12, 1765545), (15, 1412436), (18, 1177030), (20, 1059327), (30, 706218), (36, 588515), (45, 470812), (60, 353109), (90, 235406), (180, 117703)]