21707352

素因数分解:

$2^3\times 3^4\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 61492200

約数和(自身を除く): 39784848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 139, 162, 216, 241, 278, 324, 417, 482, 556, 648, 723, 834, 964, 1112, 1251, 1446, 1668, 1928, 2169, 2502, 2892, 3336, 3753, 4338, 5004, 5784, 6507, 7506, 8676, 10008, 11259, 13014, 15012, 17352, 19521, 22518, 26028, 30024, 33499, 39042, 45036, 52056, 66998, 78084, 90072, 100497, 133996, 156168, 200994, 267992, 301491, 401988, 602982, 803976, 904473, 1205964, 1808946, 2411928, 2713419, 3617892, 5426838, 7235784, 10853676, 21707352]

約数ペア:

[(1, 21707352), (2, 10853676), (3, 7235784), (4, 5426838), (6, 3617892), (8, 2713419), (9, 2411928), (12, 1808946), (18, 1205964), (24, 904473), (27, 803976), (36, 602982), (54, 401988), (72, 301491), (81, 267992), (108, 200994), (139, 156168), (162, 133996), (216, 100497), (241, 90072), (278, 78084), (324, 66998), (417, 52056), (482, 45036), (556, 39042), (648, 33499), (723, 30024), (834, 26028), (964, 22518), (1112, 19521), (1251, 17352), (1446, 15012), (1668, 13014), (1928, 11259), (2169, 10008), (2502, 8676), (2892, 7506), (3336, 6507), (3753, 5784), (4338, 5004)]