21360778816

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25674013}}^1$

素因数の和:25674038

約数の個数: 28

約数和(自身を含む): 45648396892

約数和(自身を除く): 24287618076

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25674013, 51348026, 102696052, 205392104, 333762169, 410784208, 667524338, 821568416, 1335048676, 1643136832, 2670097352, 5340194704, 10680389408, 21360778816]

約数ペア:

[(1, 21360778816), (2, 10680389408), (4, 5340194704), (8, 2670097352), (13, 1643136832), (16, 1335048676), (26, 821568416), (32, 667524338), (52, 410784208), (64, 333762169), (104, 205392104), (208, 102696052), (416, 51348026), (832, 25674013)]