20854814

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1291}}^1$

素因数の和:1531

約数の個数: 16

約数和(自身を含む): 32232816

約数和(自身を除く): 11378002

約数列:

[1, 2, 41, 82, 197, 394, 1291, 2582, 8077, 16154, 52931, 105862, 254327, 508654, 10427407, 20854814]

約数ペア:

[(1, 20854814), (2, 10427407), (41, 508654), (82, 254327), (197, 105862), (394, 52931), (1291, 16154), (2582, 8077)]