20364591

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 31030272

約数和(自身を除く): 10665681

約数列:

[1, 3, 13, 23, 39, 69, 73, 219, 299, 311, 897, 933, 949, 1679, 2847, 4043, 5037, 7153, 12129, 21459, 21827, 22703, 65481, 68109, 92989, 278967, 295139, 522169, 885417, 1566507, 6788197, 20364591]

約数ペア:

[(1, 20364591), (3, 6788197), (13, 1566507), (23, 885417), (39, 522169), (69, 295139), (73, 278967), (219, 92989), (299, 68109), (311, 65481), (897, 22703), (933, 21827), (949, 21459), (1679, 12129), (2847, 7153), (4043, 5037)]