20731640391

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{906539}}^1$

素因数の和:906577

約数の個数: 48

約数和(自身を含む): 38582342400

約数和(自身を除く): 17850702009

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 121, 189, 231, 297, 363, 693, 847, 1089, 2079, 2541, 3267, 7623, 22869, 906539, 2719617, 6345773, 8158851, 9971929, 19037319, 24476553, 29915787, 57111957, 69803503, 89747361, 109691219, 171335871, 209410509, 269242083, 329073657, 628231527, 767838533, 987220971, 1884694581, 2303515599, 2961662913, 6910546797, 20731640391]

約数ペア:

[(1, 20731640391), (3, 6910546797), (7, 2961662913), (9, 2303515599), (11, 1884694581), (21, 987220971), (27, 767838533), (33, 628231527), (63, 329073657), (77, 269242083), (99, 209410509), (121, 171335871), (189, 109691219), (231, 89747361), (297, 69803503), (363, 57111957), (693, 29915787), (847, 24476553), (1089, 19037319), (2079, 9971929), (2541, 8158851), (3267, 6345773), (7623, 2719617), (22869, 906539)]