31981026

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:101

約数の個数: 144

約数和(自身を含む): 87333120

約数和(自身を除く): 55352094

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 29, 31, 33, 42, 49, 58, 62, 66, 77, 87, 93, 98, 121, 147, 154, 174, 186, 203, 217, 231, 242, 294, 319, 341, 363, 406, 434, 462, 539, 609, 638, 651, 682, 726, 847, 899, 957, 1023, 1078, 1218, 1302, 1421, 1519, 1617, 1694, 1798, 1914, 2046, 2233, 2387, 2541, 2697, 2842, 3038, 3234, 3509, 3751, 4263, 4466, 4557, 4774, 5082, 5394, 5929, 6293, 6699, 7018, 7161, 7502, 8526, 9114, 9889, 10527, 11253, 11858, 12586, 13398, 14322, 15631, 16709, 17787, 18879, 19778, 21054, 22506, 24563, 26257, 29667, 31262, 33418, 35574, 37758, 44051, 46893, 49126, 50127, 52514, 59334, 69223, 73689, 78771, 88102, 93786, 100254, 108779, 132153, 138446, 147378, 157542, 171941, 183799, 207669, 217558, 264306, 326337, 343882, 367598, 415338, 484561, 515823, 551397, 652674, 761453, 969122, 1031646, 1102794, 1453683, 1522906, 2284359, 2907366, 4568718, 5330171, 10660342, 15990513, 31981026]

約数ペア:

[(1, 31981026), (2, 15990513), (3, 10660342), (6, 5330171), (7, 4568718), (11, 2907366), (14, 2284359), (21, 1522906), (22, 1453683), (29, 1102794), (31, 1031646), (33, 969122), (42, 761453), (49, 652674), (58, 551397), (62, 515823), (66, 484561), (77, 415338), (87, 367598), (93, 343882), (98, 326337), (121, 264306), (147, 217558), (154, 207669), (174, 183799), (186, 171941), (203, 157542), (217, 147378), (231, 138446), (242, 132153), (294, 108779), (319, 100254), (341, 93786), (363, 88102), (406, 78771), (434, 73689), (462, 69223), (539, 59334), (609, 52514), (638, 50127), (651, 49126), (682, 46893), (726, 44051), (847, 37758), (899, 35574), (957, 33418), (1023, 31262), (1078, 29667), (1218, 26257), (1302, 24563), (1421, 22506), (1519, 21054), (1617, 19778), (1694, 18879), (1798, 17787), (1914, 16709), (2046, 15631), (2233, 14322), (2387, 13398), (2541, 12586), (2697, 11858), (2842, 11253), (3038, 10527), (3234, 9889), (3509, 9114), (3751, 8526), (4263, 7502), (4466, 7161), (4557, 7018), (4774, 6699), (5082, 6293), (5394, 5929)]