20976920001

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{1733}}^1\times {\mathrm{5153}}^1$

素因数の和:6927

約数の個数: 40

約数和(自身を含む): 32441440680

約数和(自身を除く): 11464520679

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 1733, 2349, 5153, 5199, 15459, 15597, 46377, 46791, 50257, 139131, 140373, 149437, 150771, 417393, 448311, 452313, 1344933, 1356939, 4034799, 4070817, 8930149, 12104397, 26790447, 80371341, 241114023, 258974321, 723342069, 776922963, 2330768889, 6992306667, 20976920001]

約数ペア:

[(1, 20976920001), (3, 6992306667), (9, 2330768889), (27, 776922963), (29, 723342069), (81, 258974321), (87, 241114023), (261, 80371341), (783, 26790447), (1733, 12104397), (2349, 8930149), (5153, 4070817), (5199, 4034799), (15459, 1356939), (15597, 1344933), (46377, 452313), (46791, 448311), (50257, 417393), (139131, 150771), (140373, 149437)]