820481907

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1\times {\mathrm{2089}}^1$

素因数の和:2475

約数の個数: 32

約数和(自身を含む): 1276070400

約数和(自身を除く): 455588493

約数列:

[1, 3, 7, 21, 59, 177, 317, 413, 951, 1239, 2089, 2219, 6267, 6657, 14623, 18703, 43869, 56109, 123251, 130921, 369753, 392763, 662213, 862757, 1986639, 2588271, 4635491, 13906473, 39070567, 117211701, 273493969, 820481907]

約数ペア:

[(1, 820481907), (3, 273493969), (7, 117211701), (21, 39070567), (59, 13906473), (177, 4635491), (317, 2588271), (413, 1986639), (951, 862757), (1239, 662213), (2089, 392763), (2219, 369753), (6267, 130921), (6657, 123251), (14623, 56109), (18703, 43869)]