20131011

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1583}}^1$

素因数の和:1752

約数の個数: 20

約数和(自身を含む): 30282912

約数和(自身を除く): 10151901

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1583, 4239, 4749, 12717, 14247, 42741, 128223, 248531, 745593, 2236779, 6710337, 20131011]

約数ペア:

[(1, 20131011), (3, 6710337), (9, 2236779), (27, 745593), (81, 248531), (157, 128223), (471, 42741), (1413, 14247), (1583, 12717), (4239, 4749)]