13288639

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 16865280

約数和(自身を除く): 3576641

約数列:

[1, 7, 13, 47, 91, 169, 239, 329, 611, 1183, 1673, 3107, 4277, 7943, 11233, 21749, 40391, 55601, 78631, 146029, 282737, 1022203, 1898377, 13288639]

約数ペア:

[(1, 13288639), (7, 1898377), (13, 1022203), (47, 282737), (91, 146029), (169, 78631), (239, 55601), (329, 40391), (611, 21749), (1183, 11233), (1673, 7943), (3107, 4277)]