21731880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1867}}^1$

素因数の和:1978

約数の個数: 64

約数和(自身を含む): 65903040

約数和(自身を除く): 44171160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1867, 1940, 2328, 2910, 3734, 3880, 5601, 5820, 7468, 9335, 11202, 11640, 14936, 18670, 22404, 28005, 37340, 44808, 56010, 74680, 112020, 181099, 224040, 362198, 543297, 724396, 905495, 1086594, 1448792, 1810990, 2173188, 2716485, 3621980, 4346376, 5432970, 7243960, 10865940, 21731880]

約数ペア:

[(1, 21731880), (2, 10865940), (3, 7243960), (4, 5432970), (5, 4346376), (6, 3621980), (8, 2716485), (10, 2173188), (12, 1810990), (15, 1448792), (20, 1086594), (24, 905495), (30, 724396), (40, 543297), (60, 362198), (97, 224040), (120, 181099), (194, 112020), (291, 74680), (388, 56010), (485, 44808), (582, 37340), (776, 28005), (970, 22404), (1164, 18670), (1455, 14936), (1867, 11640), (1940, 11202), (2328, 9335), (2910, 7468), (3734, 5820), (3880, 5601)]