20699835

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 38814720

約数和(自身を除く): 18114885

約数列:

[1, 3, 5, 13, 15, 19, 37, 39, 57, 65, 95, 111, 151, 185, 195, 247, 285, 453, 481, 555, 703, 741, 755, 1235, 1443, 1963, 2109, 2265, 2405, 2869, 3515, 3705, 5587, 5889, 7215, 8607, 9139, 9815, 10545, 14345, 16761, 27417, 27935, 29445, 37297, 43035, 45695, 72631, 83805, 106153, 111891, 137085, 186485, 217893, 318459, 363155, 530765, 559455, 1089465, 1379989, 1592295, 4139967, 6899945, 20699835]

約数ペア:

[(1, 20699835), (3, 6899945), (5, 4139967), (13, 1592295), (15, 1379989), (19, 1089465), (37, 559455), (39, 530765), (57, 363155), (65, 318459), (95, 217893), (111, 186485), (151, 137085), (185, 111891), (195, 106153), (247, 83805), (285, 72631), (453, 45695), (481, 43035), (555, 37297), (703, 29445), (741, 27935), (755, 27417), (1235, 16761), (1443, 14345), (1963, 10545), (2109, 9815), (2265, 9139), (2405, 8607), (2869, 7215), (3515, 5889), (3705, 5587)]