70290639

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1108

約数の個数: 32

約数和(自身を含む): 108564480

約数和(自身を除く): 38273841

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 333, 639, 991, 999, 1917, 2627, 2973, 7881, 8919, 23643, 26757, 36667, 70361, 70929, 110001, 211083, 330003, 633249, 990009, 1899747, 2603357, 7810071, 23430213, 70290639]

約数ペア:

[(1, 70290639), (3, 23430213), (9, 7810071), (27, 2603357), (37, 1899747), (71, 990009), (111, 633249), (213, 330003), (333, 211083), (639, 110001), (991, 70929), (999, 70361), (1917, 36667), (2627, 26757), (2973, 23643), (7881, 8919)]