2561340201

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{1117}}^1$

素因数の和:1974

約数の個数: 48

約数和(自身を含む): 4190621760

約数和(自身を除く): 1629281559

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 821, 931, 1117, 2463, 2793, 3351, 5747, 7819, 15599, 17241, 21223, 23457, 40229, 46797, 54733, 63669, 109193, 120687, 148561, 164199, 327579, 445683, 764351, 917057, 1039927, 2293053, 2751171, 3119781, 6419399, 17424083, 19258197, 44935793, 52272249, 121968581, 134807379, 365905743, 853780067, 2561340201]

約数ペア:

[(1, 2561340201), (3, 853780067), (7, 365905743), (19, 134807379), (21, 121968581), (49, 52272249), (57, 44935793), (133, 19258197), (147, 17424083), (399, 6419399), (821, 3119781), (931, 2751171), (1117, 2293053), (2463, 1039927), (2793, 917057), (3351, 764351), (5747, 445683), (7819, 327579), (15599, 164199), (17241, 148561), (21223, 120687), (23457, 109193), (40229, 63669), (46797, 54733)]