21000376944

素因数分解:

$2^4\times 3^2\times {\mathrm{151}}^1\times {\mathrm{965801}}^1$

素因数の和:965966

約数の個数: 60

約数和(自身を含む): 59161167312

約数和(自身を除く): 38160790368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 151, 302, 453, 604, 906, 1208, 1359, 1812, 2416, 2718, 3624, 5436, 7248, 10872, 21744, 965801, 1931602, 2897403, 3863204, 5794806, 7726408, 8692209, 11589612, 15452816, 17384418, 23179224, 34768836, 46358448, 69537672, 139075344, 145835951, 291671902, 437507853, 583343804, 875015706, 1166687608, 1312523559, 1750031412, 2333375216, 2625047118, 3500062824, 5250094236, 7000125648, 10500188472, 21000376944]

約数ペア:

[(1, 21000376944), (2, 10500188472), (3, 7000125648), (4, 5250094236), (6, 3500062824), (8, 2625047118), (9, 2333375216), (12, 1750031412), (16, 1312523559), (18, 1166687608), (24, 875015706), (36, 583343804), (48, 437507853), (72, 291671902), (144, 145835951), (151, 139075344), (302, 69537672), (453, 46358448), (604, 34768836), (906, 23179224), (1208, 17384418), (1359, 15452816), (1812, 11589612), (2416, 8692209), (2718, 7726408), (3624, 5794806), (5436, 3863204), (7248, 2897403), (10872, 1931602), (21744, 965801)]