18869452

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21739}}^1$

素因数の和:21781

約数の個数: 24

約数和(自身を含む): 38958080

約数和(自身を除く): 20088628

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21739, 43478, 86956, 152173, 304346, 608692, 673909, 1347818, 2695636, 4717363, 9434726, 18869452]

約数ペア:

[(1, 18869452), (2, 9434726), (4, 4717363), (7, 2695636), (14, 1347818), (28, 673909), (31, 608692), (62, 304346), (124, 152173), (217, 86956), (434, 43478), (868, 21739)]