140025879

素因数分解:

$3^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{2131}}^1$

素因数の和:2300

約数の個数: 36

約数和(自身を含む): 236971800

約数和(自身を除く): 96945921

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 149, 441, 447, 1043, 1341, 2131, 3129, 6393, 7301, 9387, 14917, 19179, 21903, 44751, 65709, 104419, 134253, 313257, 317519, 939771, 952557, 2222633, 2857671, 6667899, 15558431, 20003697, 46675293, 140025879]

約数ペア:

[(1, 140025879), (3, 46675293), (7, 20003697), (9, 15558431), (21, 6667899), (49, 2857671), (63, 2222633), (147, 952557), (149, 939771), (441, 317519), (447, 313257), (1043, 134253), (1341, 104419), (2131, 65709), (3129, 44751), (6393, 21903), (7301, 19179), (9387, 14917)]