21539862

素因数分解:

$2^1\times 3^2\times {\mathrm{509}}^1\times {\mathrm{2351}}^1$

素因数の和:2868

約数の個数: 24

約数和(自身を含む): 46781280

約数和(自身を除く): 25241418

約数列:

[1, 2, 3, 6, 9, 18, 509, 1018, 1527, 2351, 3054, 4581, 4702, 7053, 9162, 14106, 21159, 42318, 1196659, 2393318, 3589977, 7179954, 10769931, 21539862]

約数ペア:

[(1, 21539862), (2, 10769931), (3, 7179954), (6, 3589977), (9, 2393318), (18, 1196659), (509, 42318), (1018, 21159), (1527, 14106), (2351, 9162), (3054, 7053), (4581, 4702)]