21057088

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25309}}^1$

素因数の和:25334

約数の個数: 28

約数和(自身を含む): 45001180

約数和(自身を除く): 23944092

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25309, 50618, 101236, 202472, 329017, 404944, 658034, 809888, 1316068, 1619776, 2632136, 5264272, 10528544, 21057088]

約数ペア:

[(1, 21057088), (2, 10528544), (4, 5264272), (8, 2632136), (13, 1619776), (16, 1316068), (26, 809888), (32, 658034), (52, 404944), (64, 329017), (104, 202472), (208, 101236), (416, 50618), (832, 25309)]