21281676

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136421}}^1$

素因数の和:136441

約数の個数: 24

約数和(自身を含む): 53477424

約数和(自身を除く): 32195748

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136421, 272842, 409263, 545684, 818526, 1637052, 1773473, 3546946, 5320419, 7093892, 10640838, 21281676]

約数ペア:

[(1, 21281676), (2, 10640838), (3, 7093892), (4, 5320419), (6, 3546946), (12, 1773473), (13, 1637052), (26, 818526), (39, 545684), (52, 409263), (78, 272842), (156, 136421)]