20372769

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{263}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 11729631

約数列:

[1, 3, 9, 19, 27, 57, 151, 171, 263, 453, 513, 789, 1359, 2367, 2869, 4077, 4997, 7101, 8607, 14991, 25821, 39713, 44973, 77463, 119139, 134919, 357417, 754547, 1072251, 2263641, 6790923, 20372769]

約数ペア:

[(1, 20372769), (3, 6790923), (9, 2263641), (19, 1072251), (27, 754547), (57, 357417), (151, 134919), (171, 119139), (263, 77463), (453, 44973), (513, 39713), (789, 25821), (1359, 14991), (2367, 8607), (2869, 7101), (4077, 4997)]