21761216

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{4789}}^1$

素因数の和:4872

約数の個数: 28

約数和(自身を含む): 43799760

約数和(自身を除く): 22038544

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 142, 284, 568, 1136, 2272, 4544, 4789, 9578, 19156, 38312, 76624, 153248, 306496, 340019, 680038, 1360076, 2720152, 5440304, 10880608, 21761216]

約数ペア:

[(1, 21761216), (2, 10880608), (4, 5440304), (8, 2720152), (16, 1360076), (32, 680038), (64, 340019), (71, 306496), (142, 153248), (284, 76624), (568, 38312), (1136, 19156), (2272, 9578), (4544, 4789)]