21041004045

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{37911719}}^1$

素因数の和:37911764

約数の個数: 16

約数和(自身を含む): 34575488640

約数和(自身を除く): 13534484595

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 37911719, 113735157, 189558595, 568675785, 1402733603, 4208200809, 7013668015, 21041004045]

約数ペア:

[(1, 21041004045), (3, 7013668015), (5, 4208200809), (15, 1402733603), (37, 568675785), (111, 189558595), (185, 113735157), (555, 37911719)]