31486686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:270

約数の個数: 128

約数和(自身を含む): 87920640

約数和(自身を除く): 56433954

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 19, 21, 22, 33, 34, 38, 42, 51, 57, 66, 77, 102, 114, 119, 133, 154, 187, 209, 211, 231, 238, 266, 323, 357, 374, 399, 418, 422, 462, 561, 627, 633, 646, 714, 798, 969, 1122, 1254, 1266, 1309, 1463, 1477, 1938, 2261, 2321, 2618, 2926, 2954, 3553, 3587, 3927, 4009, 4389, 4431, 4522, 4642, 6783, 6963, 7106, 7174, 7854, 8018, 8778, 8862, 10659, 10761, 12027, 13566, 13926, 16247, 21318, 21522, 24054, 24871, 25109, 28063, 32494, 39457, 44099, 48741, 49742, 50218, 56126, 68153, 74613, 75327, 78914, 84189, 88198, 97482, 118371, 132297, 136306, 149226, 150654, 168378, 204459, 236742, 264594, 276199, 308693, 408918, 477071, 552398, 617386, 749683, 828597, 926079, 954142, 1431213, 1499366, 1657194, 1852158, 2249049, 2862426, 4498098, 5247781, 10495562, 15743343, 31486686]

約数ペア:

[(1, 31486686), (2, 15743343), (3, 10495562), (6, 5247781), (7, 4498098), (11, 2862426), (14, 2249049), (17, 1852158), (19, 1657194), (21, 1499366), (22, 1431213), (33, 954142), (34, 926079), (38, 828597), (42, 749683), (51, 617386), (57, 552398), (66, 477071), (77, 408918), (102, 308693), (114, 276199), (119, 264594), (133, 236742), (154, 204459), (187, 168378), (209, 150654), (211, 149226), (231, 136306), (238, 132297), (266, 118371), (323, 97482), (357, 88198), (374, 84189), (399, 78914), (418, 75327), (422, 74613), (462, 68153), (561, 56126), (627, 50218), (633, 49742), (646, 48741), (714, 44099), (798, 39457), (969, 32494), (1122, 28063), (1254, 25109), (1266, 24871), (1309, 24054), (1463, 21522), (1477, 21318), (1938, 16247), (2261, 13926), (2321, 13566), (2618, 12027), (2926, 10761), (2954, 10659), (3553, 8862), (3587, 8778), (3927, 8018), (4009, 7854), (4389, 7174), (4431, 7106), (4522, 6963), (4642, 6783)]