20961384

素因数分解:

$2^3\times 3^1\times {\mathrm{157}}^1\times {\mathrm{5563}}^1$

素因数の和:5729

約数の個数: 32

約数和(自身を含む): 52746720

約数和(自身を除く): 31785336

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 157, 314, 471, 628, 942, 1256, 1884, 3768, 5563, 11126, 16689, 22252, 33378, 44504, 66756, 133512, 873391, 1746782, 2620173, 3493564, 5240346, 6987128, 10480692, 20961384]

約数ペア:

[(1, 20961384), (2, 10480692), (3, 6987128), (4, 5240346), (6, 3493564), (8, 2620173), (12, 1746782), (24, 873391), (157, 133512), (314, 66756), (471, 44504), (628, 33378), (942, 22252), (1256, 16689), (1884, 11126), (3768, 5563)]