289265571

素因数分解:

$3^2\times 7^2\times {\mathrm{797}}^1\times {\mathrm{823}}^1$

素因数の和:1640

約数の個数: 36

約数和(自身を含む): 487246032

約数和(自身を除く): 197980461

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 797, 823, 2391, 2469, 5579, 5761, 7173, 7407, 16737, 17283, 39053, 40327, 50211, 51849, 117159, 120981, 351477, 362943, 655931, 1967793, 4591517, 5903379, 13774551, 32140619, 41323653, 96421857, 289265571]

約数ペア:

[(1, 289265571), (3, 96421857), (7, 41323653), (9, 32140619), (21, 13774551), (49, 5903379), (63, 4591517), (147, 1967793), (441, 655931), (797, 362943), (823, 351477), (2391, 120981), (2469, 117159), (5579, 51849), (5761, 50211), (7173, 40327), (7407, 39053), (16737, 17283)]