20372978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{991}}^1$

素因数の和:1553

約数の個数: 16

約数和(自身を含む): 32259840

約数和(自身を除く): 11886862

約数列:

[1, 2, 19, 38, 541, 991, 1082, 1982, 10279, 18829, 20558, 37658, 536131, 1072262, 10186489, 20372978]

約数ペア:

[(1, 20372978), (2, 10186489), (19, 1072262), (38, 536131), (541, 37658), (991, 20558), (1082, 18829), (1982, 10279)]