21272944

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:614

約数の個数: 80

約数和(自身を含む): 53139456

約数和(自身を除く): 31866512

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 557, 616, 682, 868, 1114, 1232, 1364, 1736, 2228, 2387, 2728, 3472, 3899, 4456, 4774, 5456, 6127, 7798, 8912, 9548, 12254, 15596, 17267, 19096, 24508, 31192, 34534, 38192, 42889, 49016, 62384, 69068, 85778, 98032, 120869, 138136, 171556, 189937, 241738, 276272, 343112, 379874, 483476, 686224, 759748, 966952, 1329559, 1519496, 1933904, 2659118, 3038992, 5318236, 10636472, 21272944]

約数ペア:

[(1, 21272944), (2, 10636472), (4, 5318236), (7, 3038992), (8, 2659118), (11, 1933904), (14, 1519496), (16, 1329559), (22, 966952), (28, 759748), (31, 686224), (44, 483476), (56, 379874), (62, 343112), (77, 276272), (88, 241738), (112, 189937), (124, 171556), (154, 138136), (176, 120869), (217, 98032), (248, 85778), (308, 69068), (341, 62384), (434, 49016), (496, 42889), (557, 38192), (616, 34534), (682, 31192), (868, 24508), (1114, 19096), (1232, 17267), (1364, 15596), (1736, 12254), (2228, 9548), (2387, 8912), (2728, 7798), (3472, 6127), (3899, 5456), (4456, 4774)]