215531718

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1\times {\mathrm{1321}}^1$

素因数の和:1780

約数の個数: 32

約数和(自身を含む): 438607872

約数和(自身を除く): 223076154

約数列:

[1, 2, 3, 6, 71, 142, 213, 383, 426, 766, 1149, 1321, 2298, 2642, 3963, 7926, 27193, 54386, 81579, 93791, 163158, 187582, 281373, 505943, 562746, 1011886, 1517829, 3035658, 35921953, 71843906, 107765859, 215531718]

約数ペア:

[(1, 215531718), (2, 107765859), (3, 71843906), (6, 35921953), (71, 3035658), (142, 1517829), (213, 1011886), (383, 562746), (426, 505943), (766, 281373), (1149, 187582), (1321, 163158), (2298, 93791), (2642, 81579), (3963, 54386), (7926, 27193)]