18552513

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 29970432

約数和(自身を除く): 11417919

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 541, 1491, 1623, 1633, 3787, 4899, 11361, 11431, 12443, 34293, 37329, 38411, 87101, 115233, 261303, 268877, 806631, 883453, 2650359, 6184171, 18552513]

約数ペア:

[(1, 18552513), (3, 6184171), (7, 2650359), (21, 883453), (23, 806631), (69, 268877), (71, 261303), (161, 115233), (213, 87101), (483, 38411), (497, 37329), (541, 34293), (1491, 12443), (1623, 11431), (1633, 11361), (3787, 4899)]