21703812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 57228864

約数和(自身を除く): 35525052

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 263, 276, 299, 526, 529, 598, 789, 897, 1052, 1058, 1196, 1578, 1587, 1794, 2116, 3156, 3174, 3419, 3588, 6049, 6348, 6838, 6877, 10257, 12098, 13676, 13754, 18147, 20514, 20631, 24196, 27508, 36294, 41028, 41262, 72588, 78637, 82524, 139127, 157274, 235911, 278254, 314548, 417381, 471822, 556508, 834762, 943644, 1669524, 1808651, 3617302, 5425953, 7234604, 10851906, 21703812]

約数ペア:

[(1, 21703812), (2, 10851906), (3, 7234604), (4, 5425953), (6, 3617302), (12, 1808651), (13, 1669524), (23, 943644), (26, 834762), (39, 556508), (46, 471822), (52, 417381), (69, 314548), (78, 278254), (92, 235911), (138, 157274), (156, 139127), (263, 82524), (276, 78637), (299, 72588), (526, 41262), (529, 41028), (598, 36294), (789, 27508), (897, 24196), (1052, 20631), (1058, 20514), (1196, 18147), (1578, 13754), (1587, 13676), (1794, 12098), (2116, 10257), (3156, 6877), (3174, 6838), (3419, 6348), (3588, 6049)]