21386465984

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{599}}^1\times {\mathrm{3301}}^1$

素因数の和:3938

約数の個数: 84

約数和(自身を含む): 46045069200

約数和(自身を除く): 24658603216

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 599, 676, 832, 1198, 1352, 2396, 2704, 3301, 4792, 5408, 6602, 7787, 9584, 10816, 13204, 15574, 19168, 26408, 31148, 38336, 42913, 52816, 62296, 85826, 101231, 105632, 124592, 171652, 202462, 211264, 249184, 343304, 404924, 498368, 557869, 686608, 809848, 1115738, 1373216, 1619696, 1977299, 2231476, 2746432, 3239392, 3954598, 4462952, 6478784, 7909196, 8925904, 15818392, 17851808, 25704887, 31636784, 35703616, 51409774, 63273568, 102819548, 126547136, 205639096, 334163531, 411278192, 668327062, 822556384, 1336654124, 1645112768, 2673308248, 5346616496, 10693232992, 21386465984]

約数ペア:

[(1, 21386465984), (2, 10693232992), (4, 5346616496), (8, 2673308248), (13, 1645112768), (16, 1336654124), (26, 822556384), (32, 668327062), (52, 411278192), (64, 334163531), (104, 205639096), (169, 126547136), (208, 102819548), (338, 63273568), (416, 51409774), (599, 35703616), (676, 31636784), (832, 25704887), (1198, 17851808), (1352, 15818392), (2396, 8925904), (2704, 7909196), (3301, 6478784), (4792, 4462952), (5408, 3954598), (6602, 3239392), (7787, 2746432), (9584, 2231476), (10816, 1977299), (13204, 1619696), (15574, 1373216), (19168, 1115738), (26408, 809848), (31148, 686608), (38336, 557869), (42913, 498368), (52816, 404924), (62296, 343304), (85826, 249184), (101231, 211264), (105632, 202462), (124592, 171652)]