21546284

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{739}}^1$

素因数の和:977

約数の個数: 24

約数和(自身を含む): 38974320

約数和(自身を除く): 17428036

約数列:

[1, 2, 4, 37, 74, 148, 197, 394, 739, 788, 1478, 2956, 7289, 14578, 27343, 29156, 54686, 109372, 145583, 291166, 582332, 5386571, 10773142, 21546284]

約数ペア:

[(1, 21546284), (2, 10773142), (4, 5386571), (37, 582332), (74, 291166), (148, 145583), (197, 109372), (394, 54686), (739, 29156), (788, 27343), (1478, 14578), (2956, 7289)]