1971234818

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{3863}}^1$

素因数の和:4047

約数の個数: 48

約数和(自身を含む): 3552159744

約数和(自身を除く): 1580924926

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 127, 254, 287, 574, 889, 1778, 2009, 3863, 4018, 5207, 6223, 7726, 10414, 12446, 27041, 36449, 54082, 72898, 158383, 189287, 255143, 316766, 378574, 490601, 510286, 981202, 1108681, 2217362, 3434207, 6868414, 7760767, 15521534, 20114641, 24039449, 40229282, 48078898, 140802487, 281604974, 985617409, 1971234818]

約数ペア:

[(1, 1971234818), (2, 985617409), (7, 281604974), (14, 140802487), (41, 48078898), (49, 40229282), (82, 24039449), (98, 20114641), (127, 15521534), (254, 7760767), (287, 6868414), (574, 3434207), (889, 2217362), (1778, 1108681), (2009, 981202), (3863, 510286), (4018, 490601), (5207, 378574), (6223, 316766), (7726, 255143), (10414, 189287), (12446, 158383), (27041, 72898), (36449, 54082)]