18470067

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 31547904

約数和(自身を除く): 13077837

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2161, 2849, 6483, 8547, 15127, 23771, 45381, 71313, 79957, 166397, 239871, 499191, 559699, 879527, 1679097, 2638581, 6156689, 18470067]

約数ペア:

[(1, 18470067), (3, 6156689), (7, 2638581), (11, 1679097), (21, 879527), (33, 559699), (37, 499191), (77, 239871), (111, 166397), (231, 79957), (259, 71313), (407, 45381), (777, 23771), (1221, 15127), (2161, 8547), (2849, 6483)]