18679856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2949

約数の個数: 40

約数和(自身を含む): 40247424

約数和(自身を除く): 21567568

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 2897, 3224, 5794, 6448, 11588, 23176, 37661, 46352, 75322, 89807, 150644, 179614, 301288, 359228, 602576, 718456, 1167491, 1436912, 2334982, 4669964, 9339928, 18679856]

約数ペア:

[(1, 18679856), (2, 9339928), (4, 4669964), (8, 2334982), (13, 1436912), (16, 1167491), (26, 718456), (31, 602576), (52, 359228), (62, 301288), (104, 179614), (124, 150644), (208, 89807), (248, 75322), (403, 46352), (496, 37661), (806, 23176), (1612, 11588), (2897, 6448), (3224, 5794)]