19218777

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3923}}^1$

素因数の和:4020

約数の個数: 16

約数和(自身を含む): 27122688

約数和(自身を除く): 7903911

約数列:

[1, 3, 23, 69, 71, 213, 1633, 3923, 4899, 11769, 90229, 270687, 278533, 835599, 6406259, 19218777]

約数ペア:

[(1, 19218777), (3, 6406259), (23, 835599), (69, 278533), (71, 270687), (213, 90229), (1633, 11769), (3923, 4899)]