21679878

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 28501242

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 47, 58, 66, 87, 94, 141, 174, 241, 282, 319, 482, 517, 638, 723, 957, 1034, 1363, 1446, 1551, 1914, 2651, 2726, 3102, 4089, 5302, 6989, 7953, 8178, 11327, 13978, 14993, 15906, 20967, 22654, 29986, 33981, 41934, 44979, 67962, 76879, 89958, 124597, 153758, 230637, 249194, 328483, 373791, 461274, 656966, 747582, 985449, 1970898, 3613313, 7226626, 10839939, 21679878]

約数ペア:

[(1, 21679878), (2, 10839939), (3, 7226626), (6, 3613313), (11, 1970898), (22, 985449), (29, 747582), (33, 656966), (47, 461274), (58, 373791), (66, 328483), (87, 249194), (94, 230637), (141, 153758), (174, 124597), (241, 89958), (282, 76879), (319, 67962), (482, 44979), (517, 41934), (638, 33981), (723, 29986), (957, 22654), (1034, 20967), (1363, 15906), (1446, 14993), (1551, 13978), (1914, 11327), (2651, 8178), (2726, 7953), (3102, 6989), (4089, 5302)]