21163860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117577}}^1$

素因数の和:117592

約数の個数: 36

約数和(自身を含む): 64197588

約数和(自身を除く): 43033728

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117577, 235154, 352731, 470308, 587885, 705462, 1058193, 1175770, 1410924, 1763655, 2116386, 2351540, 3527310, 4232772, 5290965, 7054620, 10581930, 21163860]

約数ペア:

[(1, 21163860), (2, 10581930), (3, 7054620), (4, 5290965), (5, 4232772), (6, 3527310), (9, 2351540), (10, 2116386), (12, 1763655), (15, 1410924), (18, 1175770), (20, 1058193), (30, 705462), (36, 587885), (45, 470308), (60, 352731), (90, 235154), (180, 117577)]