20258181

素因数分解:

$3^7\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 31094400

約数和(自身を除く): 10836219

約数列:

[1, 3, 9, 27, 59, 81, 157, 177, 243, 471, 531, 729, 1413, 1593, 2187, 4239, 4779, 9263, 12717, 14337, 27789, 38151, 43011, 83367, 114453, 129033, 250101, 343359, 750303, 2250909, 6752727, 20258181]

約数ペア:

[(1, 20258181), (3, 6752727), (9, 2250909), (27, 750303), (59, 343359), (81, 250101), (157, 129033), (177, 114453), (243, 83367), (471, 43011), (531, 38151), (729, 27789), (1413, 14337), (1593, 12717), (2187, 9263), (4239, 4779)]