289383921

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{53323}}^1$

素因数の和:53402

約数の個数: 20

約数和(自身を含む): 438749872

約数和(自身を除く): 149365951

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 53323, 159969, 479907, 1439721, 3572641, 4319163, 10717923, 32153769, 96461307, 289383921]

約数ペア:

[(1, 289383921), (3, 96461307), (9, 32153769), (27, 10717923), (67, 4319163), (81, 3572641), (201, 1439721), (603, 479907), (1809, 159969), (5427, 53323)]