21157848

素因数分解:

$2^3\times 3^4\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 60025680

約数和(自身を除く): 38867832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 103, 108, 162, 206, 216, 309, 317, 324, 412, 618, 634, 648, 824, 927, 951, 1236, 1268, 1854, 1902, 2472, 2536, 2781, 2853, 3708, 3804, 5562, 5706, 7416, 7608, 8343, 8559, 11124, 11412, 16686, 17118, 22248, 22824, 25677, 32651, 33372, 34236, 51354, 65302, 66744, 68472, 97953, 102708, 130604, 195906, 205416, 261208, 293859, 391812, 587718, 783624, 881577, 1175436, 1763154, 2350872, 2644731, 3526308, 5289462, 7052616, 10578924, 21157848]

約数ペア:

[(1, 21157848), (2, 10578924), (3, 7052616), (4, 5289462), (6, 3526308), (8, 2644731), (9, 2350872), (12, 1763154), (18, 1175436), (24, 881577), (27, 783624), (36, 587718), (54, 391812), (72, 293859), (81, 261208), (103, 205416), (108, 195906), (162, 130604), (206, 102708), (216, 97953), (309, 68472), (317, 66744), (324, 65302), (412, 51354), (618, 34236), (634, 33372), (648, 32651), (824, 25677), (927, 22824), (951, 22248), (1236, 17118), (1268, 16686), (1854, 11412), (1902, 11124), (2472, 8559), (2536, 8343), (2781, 7608), (2853, 7416), (3708, 5706), (3804, 5562)]