18664268

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{12577}}^1$

素因数の和:12641

約数の個数: 24

約数和(自身を含む): 38035872

約数和(自身を除く): 19371604

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 12577, 25154, 50308, 88039, 176078, 352156, 666581, 1333162, 2666324, 4666067, 9332134, 18664268]

約数ペア:

[(1, 18664268), (2, 9332134), (4, 4666067), (7, 2666324), (14, 1333162), (28, 666581), (53, 352156), (106, 176078), (212, 88039), (371, 50308), (742, 25154), (1484, 12577)]