21640266

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 48761856

約数和(自身を除く): 27121590

約数列:

[1, 2, 3, 6, 9, 18, 43, 73, 86, 129, 146, 219, 258, 383, 387, 438, 657, 766, 774, 1149, 1314, 2298, 3139, 3447, 6278, 6894, 9417, 16469, 18834, 27959, 28251, 32938, 49407, 55918, 56502, 83877, 98814, 148221, 167754, 251631, 296442, 503262, 1202237, 2404474, 3606711, 7213422, 10820133, 21640266]

約数ペア:

[(1, 21640266), (2, 10820133), (3, 7213422), (6, 3606711), (9, 2404474), (18, 1202237), (43, 503262), (73, 296442), (86, 251631), (129, 167754), (146, 148221), (219, 98814), (258, 83877), (383, 56502), (387, 55918), (438, 49407), (657, 32938), (766, 28251), (774, 27959), (1149, 18834), (1314, 16469), (2298, 9417), (3139, 6894), (3447, 6278)]