21167145

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12713}}^1$

素因数の和:12761

約数の個数: 24

約数和(自身を含む): 37684296

約数和(自身を除く): 16517151

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12713, 38139, 63565, 114417, 190695, 470381, 572085, 1411143, 2351905, 4233429, 7055715, 21167145]

約数ペア:

[(1, 21167145), (3, 7055715), (5, 4233429), (9, 2351905), (15, 1411143), (37, 572085), (45, 470381), (111, 190695), (185, 114417), (333, 63565), (555, 38139), (1665, 12713)]