20538873

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1543}}^1$

素因数の和:1598

約数の個数: 32

約数和(自身を含む): 33350400

約数和(自身を除く): 12811527

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 1543, 4437, 4629, 13311, 13887, 26231, 41661, 44747, 78693, 134241, 236079, 402723, 708237, 760699, 1208169, 2282097, 6846291, 20538873]

約数ペア:

[(1, 20538873), (3, 6846291), (9, 2282097), (17, 1208169), (27, 760699), (29, 708237), (51, 402723), (87, 236079), (153, 134241), (261, 78693), (459, 44747), (493, 41661), (783, 26231), (1479, 13887), (1543, 13311), (4437, 4629)]