408070431

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{21001}}^1$

素因数の和:21151

約数の個数: 24

約数和(自身を含む): 629051904

約数和(自身を除く): 220981473

約数列:

[1, 3, 9, 17, 51, 127, 153, 381, 1143, 2159, 6477, 19431, 21001, 63003, 189009, 357017, 1071051, 2667127, 3213153, 8001381, 24004143, 45341159, 136023477, 408070431]

約数ペア:

[(1, 408070431), (3, 136023477), (9, 45341159), (17, 24004143), (51, 8001381), (127, 3213153), (153, 2667127), (381, 1071051), (1143, 357017), (2159, 189009), (6477, 63003), (19431, 21001)]