31378906

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 55655424

約数和(自身を除く): 24276518

約数列:

[1, 2, 13, 17, 26, 34, 43, 86, 127, 169, 221, 254, 338, 442, 559, 731, 1118, 1462, 1651, 2159, 2873, 3302, 4318, 5461, 5746, 7267, 9503, 10922, 14534, 19006, 21463, 28067, 42926, 56134, 70993, 92837, 123539, 141986, 185674, 247078, 364871, 729742, 922909, 1206881, 1845818, 2413762, 15689453, 31378906]

約数ペア:

[(1, 31378906), (2, 15689453), (13, 2413762), (17, 1845818), (26, 1206881), (34, 922909), (43, 729742), (86, 364871), (127, 247078), (169, 185674), (221, 141986), (254, 123539), (338, 92837), (442, 70993), (559, 56134), (731, 42926), (1118, 28067), (1462, 21463), (1651, 19006), (2159, 14534), (2873, 10922), (3302, 9503), (4318, 7267), (5461, 5746)]