21286684

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{577}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 39035808

約数和(自身を除く): 17749124

約数列:

[1, 2, 4, 23, 46, 92, 401, 577, 802, 1154, 1604, 2308, 9223, 13271, 18446, 26542, 36892, 53084, 231377, 462754, 925508, 5321671, 10643342, 21286684]

約数ペア:

[(1, 21286684), (2, 10643342), (4, 5321671), (23, 925508), (46, 462754), (92, 231377), (401, 53084), (577, 36892), (802, 26542), (1154, 18446), (1604, 13271), (2308, 9223)]