397348539

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{16879}}^1$

素因数の和:16967

約数の個数: 32

約数和(自身を含む): 648192000

約数和(自身を除く): 250843461

約数列:

[1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 1121, 1239, 3363, 7847, 16879, 23541, 50637, 118153, 320701, 354459, 962103, 995861, 2244907, 2987583, 6734721, 6971027, 18921359, 20913081, 56764077, 132449513, 397348539]

約数ペア:

[(1, 397348539), (3, 132449513), (7, 56764077), (19, 20913081), (21, 18921359), (57, 6971027), (59, 6734721), (133, 2987583), (177, 2244907), (399, 995861), (413, 962103), (1121, 354459), (1239, 320701), (3363, 118153), (7847, 50637), (16879, 23541)]