19870292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1811}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 37646112

約数和(自身を除く): 17775820

約数列:

[1, 2, 4, 13, 26, 52, 211, 422, 844, 1811, 2743, 3622, 5486, 7244, 10972, 23543, 47086, 94172, 382121, 764242, 1528484, 4967573, 9935146, 19870292]

約数ペア:

[(1, 19870292), (2, 9935146), (4, 4967573), (13, 1528484), (26, 764242), (52, 382121), (211, 94172), (422, 47086), (844, 23543), (1811, 10972), (2743, 7244), (3622, 5486)]