21170754

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1229}}^1$

素因数の和:1280

約数の個数: 64

約数和(自身を含む): 53136000

約数和(自身を除く): 31965246

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 29, 33, 54, 58, 66, 87, 99, 174, 198, 261, 297, 319, 522, 594, 638, 783, 957, 1229, 1566, 1914, 2458, 2871, 3687, 5742, 7374, 8613, 11061, 13519, 17226, 22122, 27038, 33183, 35641, 40557, 66366, 71282, 81114, 106923, 121671, 213846, 243342, 320769, 365013, 392051, 641538, 730026, 784102, 962307, 1176153, 1924614, 2352306, 3528459, 7056918, 10585377, 21170754]

約数ペア:

[(1, 21170754), (2, 10585377), (3, 7056918), (6, 3528459), (9, 2352306), (11, 1924614), (18, 1176153), (22, 962307), (27, 784102), (29, 730026), (33, 641538), (54, 392051), (58, 365013), (66, 320769), (87, 243342), (99, 213846), (174, 121671), (198, 106923), (261, 81114), (297, 71282), (319, 66366), (522, 40557), (594, 35641), (638, 33183), (783, 27038), (957, 22122), (1229, 17226), (1566, 13519), (1914, 11061), (2458, 8613), (2871, 7374), (3687, 5742)]