389717937

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131617}}^1$

素因数の和:131677

約数の個数: 24

約数和(自身を含む): 657037056

約数和(自身を除く): 267319119

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 131617, 394851, 921319, 1184553, 2763957, 6185999, 8291871, 18557997, 43301993, 55673991, 129905979, 389717937]

約数ペア:

[(1, 389717937), (3, 129905979), (7, 55673991), (9, 43301993), (21, 18557997), (47, 8291871), (63, 6185999), (141, 2763957), (329, 1184553), (423, 921319), (987, 394851), (2961, 131617)]