19703697

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 10633071

約数列:

[1, 3, 13, 17, 39, 51, 113, 221, 263, 339, 663, 789, 1469, 1921, 3419, 4407, 4471, 5763, 10257, 13413, 24973, 29719, 58123, 74919, 89157, 174369, 386347, 505223, 1159041, 1515669, 6567899, 19703697]

約数ペア:

[(1, 19703697), (3, 6567899), (13, 1515669), (17, 1159041), (39, 505223), (51, 386347), (113, 174369), (221, 89157), (263, 74919), (339, 58123), (663, 29719), (789, 24973), (1469, 13413), (1921, 10257), (3419, 5763), (4407, 4471)]