18681208

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{383}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 43868160

約数和(自身を除く): 25186952

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 182, 268, 364, 383, 469, 536, 728, 766, 871, 938, 1532, 1742, 1876, 2681, 3064, 3484, 3752, 4979, 5362, 6097, 6968, 9958, 10724, 12194, 19916, 21448, 24388, 25661, 34853, 39832, 48776, 51322, 69706, 102644, 139412, 179627, 205288, 278824, 333593, 359254, 667186, 718508, 1334372, 1437016, 2335151, 2668744, 4670302, 9340604, 18681208]

約数ペア:

[(1, 18681208), (2, 9340604), (4, 4670302), (7, 2668744), (8, 2335151), (13, 1437016), (14, 1334372), (26, 718508), (28, 667186), (52, 359254), (56, 333593), (67, 278824), (91, 205288), (104, 179627), (134, 139412), (182, 102644), (268, 69706), (364, 51322), (383, 48776), (469, 39832), (536, 34853), (728, 25661), (766, 24388), (871, 21448), (938, 19916), (1532, 12194), (1742, 10724), (1876, 9958), (2681, 6968), (3064, 6097), (3484, 5362), (3752, 4979)]