21229312

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{6379}}^1$

素因数の和:6408

約数の個数: 36

約数和(自身を含む): 45642520

約数和(自身を除く): 24413208

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 6379, 12758, 25516, 51032, 82927, 102064, 165854, 204128, 331708, 408256, 663416, 816512, 1326832, 1633024, 2653664, 5307328, 10614656, 21229312]

約数ペア:

[(1, 21229312), (2, 10614656), (4, 5307328), (8, 2653664), (13, 1633024), (16, 1326832), (26, 816512), (32, 663416), (52, 408256), (64, 331708), (104, 204128), (128, 165854), (208, 102064), (256, 82927), (416, 51032), (832, 25516), (1664, 12758), (3328, 6379)]