18687906

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1031}}^1$

素因数の和:1111

約数の個数: 48

約数和(自身を含む): 43467840

約数和(自身を除く): 24779934

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 53, 57, 106, 114, 159, 171, 318, 342, 477, 954, 1007, 1031, 2014, 2062, 3021, 3093, 6042, 6186, 9063, 9279, 18126, 18558, 19589, 39178, 54643, 58767, 109286, 117534, 163929, 176301, 327858, 352602, 491787, 983574, 1038217, 2076434, 3114651, 6229302, 9343953, 18687906]

約数ペア:

[(1, 18687906), (2, 9343953), (3, 6229302), (6, 3114651), (9, 2076434), (18, 1038217), (19, 983574), (38, 491787), (53, 352602), (57, 327858), (106, 176301), (114, 163929), (159, 117534), (171, 109286), (318, 58767), (342, 54643), (477, 39178), (954, 19589), (1007, 18558), (1031, 18126), (2014, 9279), (2062, 9063), (3021, 6186), (3093, 6042)]