21273076

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 21244364

約数列:

[1, 2, 4, 11, 22, 37, 44, 73, 74, 146, 148, 179, 292, 358, 407, 716, 803, 814, 1606, 1628, 1969, 2701, 3212, 3938, 5402, 6623, 7876, 10804, 13067, 13246, 26134, 26492, 29711, 52268, 59422, 72853, 118844, 143737, 145706, 287474, 291412, 483479, 574948, 966958, 1933916, 5318269, 10636538, 21273076]

約数ペア:

[(1, 21273076), (2, 10636538), (4, 5318269), (11, 1933916), (22, 966958), (37, 574948), (44, 483479), (73, 291412), (74, 287474), (146, 145706), (148, 143737), (179, 118844), (292, 72853), (358, 59422), (407, 52268), (716, 29711), (803, 26492), (814, 26134), (1606, 13246), (1628, 13067), (1969, 10804), (2701, 7876), (3212, 6623), (3938, 5402)]