18880268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 20238196

約数列:

[1, 2, 4, 11, 17, 22, 34, 43, 44, 68, 86, 172, 187, 374, 473, 587, 731, 748, 946, 1174, 1462, 1892, 2348, 2924, 6457, 8041, 9979, 12914, 16082, 19958, 25241, 25828, 32164, 39916, 50482, 100964, 109769, 219538, 277651, 429097, 439076, 555302, 858194, 1110604, 1716388, 4720067, 9440134, 18880268]

約数ペア:

[(1, 18880268), (2, 9440134), (4, 4720067), (11, 1716388), (17, 1110604), (22, 858194), (34, 555302), (43, 439076), (44, 429097), (68, 277651), (86, 219538), (172, 109769), (187, 100964), (374, 50482), (473, 39916), (587, 32164), (731, 25828), (748, 25241), (946, 19958), (1174, 16082), (1462, 12914), (1892, 9979), (2348, 8041), (2924, 6457)]