20864202

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 46531584

約数和(自身を除く): 25667382

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 67, 71, 86, 102, 129, 134, 142, 201, 213, 258, 402, 426, 731, 1139, 1207, 1462, 2193, 2278, 2414, 2881, 3053, 3417, 3621, 4386, 4757, 5762, 6106, 6834, 7242, 8643, 9159, 9514, 14271, 17286, 18318, 28542, 48977, 51901, 80869, 97954, 103802, 146931, 155703, 161738, 204551, 242607, 293862, 311406, 409102, 485214, 613653, 1227306, 3477367, 6954734, 10432101, 20864202]

約数ペア:

[(1, 20864202), (2, 10432101), (3, 6954734), (6, 3477367), (17, 1227306), (34, 613653), (43, 485214), (51, 409102), (67, 311406), (71, 293862), (86, 242607), (102, 204551), (129, 161738), (134, 155703), (142, 146931), (201, 103802), (213, 97954), (258, 80869), (402, 51901), (426, 48977), (731, 28542), (1139, 18318), (1207, 17286), (1462, 14271), (2193, 9514), (2278, 9159), (2414, 8643), (2881, 7242), (3053, 6834), (3417, 6106), (3621, 5762), (4386, 4757)]