20809902015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{482213}}^1$

素因数の和:482368

約数の個数: 48

約数和(自身を含む): 41524411968

約数和(自身を除く): 20714509953

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 685, 959, 1233, 2055, 2877, 4795, 6165, 8631, 14385, 43155, 482213, 1446639, 2411065, 3375491, 4339917, 7233195, 10126473, 16877455, 21699585, 30379419, 50632365, 66063181, 151897095, 198189543, 330315905, 462442267, 594568629, 990947715, 1387326801, 2312211335, 2972843145, 4161980403, 6936634005, 20809902015]

約数ペア:

[(1, 20809902015), (3, 6936634005), (5, 4161980403), (7, 2972843145), (9, 2312211335), (15, 1387326801), (21, 990947715), (35, 594568629), (45, 462442267), (63, 330315905), (105, 198189543), (137, 151897095), (315, 66063181), (411, 50632365), (685, 30379419), (959, 21699585), (1233, 16877455), (2055, 10126473), (2877, 7233195), (4795, 4339917), (6165, 3375491), (8631, 2411065), (14385, 1446639), (43155, 482213)]