18850713

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 11009127

約数列:

[1, 3, 7, 21, 47, 71, 141, 213, 269, 329, 497, 807, 987, 1491, 1883, 3337, 5649, 10011, 12643, 19099, 23359, 37929, 57297, 70077, 88501, 133693, 265503, 401079, 897653, 2692959, 6283571, 18850713]

約数ペア:

[(1, 18850713), (3, 6283571), (7, 2692959), (21, 897653), (47, 401079), (71, 265503), (141, 133693), (213, 88501), (269, 70077), (329, 57297), (497, 37929), (807, 23359), (987, 19099), (1491, 12643), (1883, 10011), (3337, 5649)]