128905731

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{6997}}^1$

素因数の和:7115

約数の個数: 24

約数和(自身を含む): 196503840

約数和(自身を除く): 67598109

約数列:

[1, 3, 9, 23, 69, 89, 207, 267, 801, 2047, 6141, 6997, 18423, 20991, 62973, 160931, 482793, 622733, 1448379, 1868199, 5604597, 14322859, 42968577, 128905731]

約数ペア:

[(1, 128905731), (3, 42968577), (9, 14322859), (23, 5604597), (69, 1868199), (89, 1448379), (207, 622733), (267, 482793), (801, 160931), (2047, 62973), (6141, 20991), (6997, 18423)]