86987212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{23561}}^1$

素因数の和:23649

約数の個数: 24

約数和(自身を含む): 166253472

約数和(自身を除く): 79266260

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 23561, 47122, 94244, 306293, 612586, 1225172, 1672831, 3345662, 6691324, 21746803, 43493606, 86987212]

約数ペア:

[(1, 86987212), (2, 43493606), (4, 21746803), (13, 6691324), (26, 3345662), (52, 1672831), (71, 1225172), (142, 612586), (284, 306293), (923, 94244), (1846, 47122), (3692, 23561)]