19918041

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1601}}^1$

素因数の和:1657

約数の個数: 32

約数和(自身を含む): 32296320

約数和(自身を除く): 12378279

約数列:

[1, 3, 11, 13, 29, 33, 39, 87, 143, 319, 377, 429, 957, 1131, 1601, 4147, 4803, 12441, 17611, 20813, 46429, 52833, 62439, 139287, 228943, 510719, 603577, 686829, 1532157, 1810731, 6639347, 19918041]

約数ペア:

[(1, 19918041), (3, 6639347), (11, 1810731), (13, 1532157), (29, 686829), (33, 603577), (39, 510719), (87, 228943), (143, 139287), (319, 62439), (377, 52833), (429, 46429), (957, 20813), (1131, 17611), (1601, 12441), (4147, 4803)]