21343388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{953}}^1$

素因数の和:1477

約数の個数: 24

約数和(自身を含む): 40869360

約数和(自身を除く): 19525972

約数列:

[1, 2, 4, 11, 22, 44, 509, 953, 1018, 1906, 2036, 3812, 5599, 10483, 11198, 20966, 22396, 41932, 485077, 970154, 1940308, 5335847, 10671694, 21343388]

約数ペア:

[(1, 21343388), (2, 10671694), (4, 5335847), (11, 1940308), (22, 970154), (44, 485077), (509, 41932), (953, 22396), (1018, 20966), (1906, 11198), (2036, 10483), (3812, 5599)]