21676868

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{601}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 38836224

約数和(自身を除く): 17159356

約数列:

[1, 2, 4, 71, 127, 142, 254, 284, 508, 601, 1202, 2404, 9017, 18034, 36068, 42671, 76327, 85342, 152654, 170684, 305308, 5419217, 10838434, 21676868]

約数ペア:

[(1, 21676868), (2, 10838434), (4, 5419217), (71, 305308), (127, 170684), (142, 152654), (254, 85342), (284, 76327), (508, 42671), (601, 36068), (1202, 18034), (2404, 9017)]