18884008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{971}}^1$

素因数の和:1018

約数の個数: 64

約数和(自身を含む): 44089920

約数和(自身を除く): 25205912

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 971, 1144, 1496, 1768, 1942, 2431, 3884, 4862, 7768, 9724, 10681, 12623, 16507, 19448, 21362, 25246, 33014, 42724, 50492, 66028, 85448, 100984, 132056, 138853, 181577, 214591, 277706, 363154, 429182, 555412, 726308, 858364, 1110824, 1452616, 1716728, 2360501, 4721002, 9442004, 18884008]

約数ペア:

[(1, 18884008), (2, 9442004), (4, 4721002), (8, 2360501), (11, 1716728), (13, 1452616), (17, 1110824), (22, 858364), (26, 726308), (34, 555412), (44, 429182), (52, 363154), (68, 277706), (88, 214591), (104, 181577), (136, 138853), (143, 132056), (187, 100984), (221, 85448), (286, 66028), (374, 50492), (442, 42724), (572, 33014), (748, 25246), (884, 21362), (971, 19448), (1144, 16507), (1496, 12623), (1768, 10681), (1942, 9724), (2431, 7768), (3884, 4862)]