18637821

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{953}}^1$

素因数の和:1053

約数の個数: 24

約数和(自身を含む): 28127736

約数和(自身を除く): 9489915

約数列:

[1, 3, 9, 41, 53, 123, 159, 369, 477, 953, 2173, 2859, 6519, 8577, 19557, 39073, 50509, 117219, 151527, 351657, 454581, 2070869, 6212607, 18637821]

約数ペア:

[(1, 18637821), (3, 6212607), (9, 2070869), (41, 454581), (53, 351657), (123, 151527), (159, 117219), (369, 50509), (477, 39073), (953, 19557), (2173, 8577), (2859, 6519)]