21690968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5087}}^1$

素因数の和:5147

約数の個数: 32

約数和(自身を含む): 44876160

約数和(自身を除く): 23185192

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 5087, 10174, 20348, 40696, 66131, 132262, 208567, 264524, 417134, 529048, 834268, 1668536, 2711371, 5422742, 10845484, 21690968]

約数ペア:

[(1, 21690968), (2, 10845484), (4, 5422742), (8, 2711371), (13, 1668536), (26, 834268), (41, 529048), (52, 417134), (82, 264524), (104, 208567), (164, 132262), (328, 66131), (533, 40696), (1066, 20348), (2132, 10174), (4264, 5087)]