12920722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4789}}^1$

素因数の和:4881

約数の個数: 16

約数和(自身を含む): 20692800

約数和(自身を除く): 7772078

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 4789, 9578, 90991, 181982, 340019, 680038, 6460361, 12920722]

約数ペア:

[(1, 12920722), (2, 6460361), (19, 680038), (38, 340019), (71, 181982), (142, 90991), (1349, 9578), (2698, 4789)]