19993155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 40040448

約数和(自身を除く): 20047293

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 97, 105, 151, 195, 273, 291, 453, 455, 485, 679, 755, 1057, 1261, 1365, 1455, 1963, 2037, 2265, 3171, 3395, 3783, 5285, 5889, 6305, 8827, 9815, 10185, 13741, 14647, 15855, 18915, 26481, 29445, 41223, 43941, 44135, 68705, 73235, 102529, 132405, 190411, 206115, 219705, 307587, 512645, 571233, 952055, 1332877, 1537935, 2856165, 3998631, 6664385, 19993155]

約数ペア:

[(1, 19993155), (3, 6664385), (5, 3998631), (7, 2856165), (13, 1537935), (15, 1332877), (21, 952055), (35, 571233), (39, 512645), (65, 307587), (91, 219705), (97, 206115), (105, 190411), (151, 132405), (195, 102529), (273, 73235), (291, 68705), (453, 44135), (455, 43941), (485, 41223), (679, 29445), (755, 26481), (1057, 18915), (1261, 15855), (1365, 14647), (1455, 13741), (1963, 10185), (2037, 9815), (2265, 8827), (3171, 6305), (3395, 5889), (3783, 5285)]