21291556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37223}}^1$

素因数の和:37251

約数の個数: 24

約数和(自身を含む): 43775424

約数和(自身を除く): 22483868

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37223, 74446, 148892, 409453, 483899, 818906, 967798, 1637812, 1935596, 5322889, 10645778, 21291556]

約数ペア:

[(1, 21291556), (2, 10645778), (4, 5322889), (11, 1935596), (13, 1637812), (22, 967798), (26, 818906), (44, 483899), (52, 409453), (143, 148892), (286, 74446), (572, 37223)]