21764656

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12713}}^1$

素因数の和:12828

約数の個数: 20

約数和(自身を含む): 42566472

約数和(自身を除く): 20801816

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12713, 25426, 50852, 101704, 203408, 1360291, 2720582, 5441164, 10882328, 21764656]

約数ペア:

[(1, 21764656), (2, 10882328), (4, 5441164), (8, 2720582), (16, 1360291), (107, 203408), (214, 101704), (428, 50852), (856, 25426), (1712, 12713)]