21167192858

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{37589}}^1$

素因数の和:37719

約数の個数: 64

約数和(自身を含む): 40055904000

約数和(自身を除く): 18888711142

約数列:

[1, 2, 7, 14, 19, 29, 38, 58, 73, 133, 146, 203, 266, 406, 511, 551, 1022, 1102, 1387, 2117, 2774, 3857, 4234, 7714, 9709, 14819, 19418, 29638, 37589, 40223, 75178, 80446, 263123, 281561, 526246, 563122, 714191, 1090081, 1428382, 2180162, 2743997, 4999337, 5487994, 7630567, 9998674, 15261134, 19207979, 20711539, 38415958, 41423078, 52135943, 79575913, 104271886, 144980773, 159151826, 289961546, 364951601, 557031391, 729903202, 1114062782, 1511942347, 3023884694, 10583596429, 21167192858]

約数ペア:

[(1, 21167192858), (2, 10583596429), (7, 3023884694), (14, 1511942347), (19, 1114062782), (29, 729903202), (38, 557031391), (58, 364951601), (73, 289961546), (133, 159151826), (146, 144980773), (203, 104271886), (266, 79575913), (406, 52135943), (511, 41423078), (551, 38415958), (1022, 20711539), (1102, 19207979), (1387, 15261134), (2117, 9998674), (2774, 7630567), (3857, 5487994), (4234, 4999337), (7714, 2743997), (9709, 2180162), (14819, 1428382), (19418, 1090081), (29638, 714191), (37589, 563122), (40223, 526246), (75178, 281561), (80446, 263123)]