20318816

素因数分解:

$2^5\times 7^1\times {\mathrm{90709}}^1$

素因数の和:90726

約数の個数: 24

約数和(自身を含む): 45717840

約数和(自身を除く): 25399024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 90709, 181418, 362836, 634963, 725672, 1269926, 1451344, 2539852, 2902688, 5079704, 10159408, 20318816]

約数ペア:

[(1, 20318816), (2, 10159408), (4, 5079704), (7, 2902688), (8, 2539852), (14, 1451344), (16, 1269926), (28, 725672), (32, 634963), (56, 362836), (112, 181418), (224, 90709)]