21878470658

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4051}}^1\times {\mathrm{7919}}^1$

素因数の和:12014

約数の個数: 32

約数和(自身を含む): 36969799680

約数和(自身を除く): 15091329022

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 4051, 7919, 8102, 15838, 44561, 87109, 89122, 125581, 174218, 245489, 251162, 490978, 1381391, 2700379, 2762782, 5400758, 32079869, 64159738, 352878559, 705757118, 994475939, 1988951878, 10939235329, 21878470658]

約数ペア:

[(1, 21878470658), (2, 10939235329), (11, 1988951878), (22, 994475939), (31, 705757118), (62, 352878559), (341, 64159738), (682, 32079869), (4051, 5400758), (7919, 2762782), (8102, 2700379), (15838, 1381391), (44561, 490978), (87109, 251162), (89122, 245489), (125581, 174218)]