20886178

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{1973}}^1$

素因数の和:2121

約数の個数: 16

約数和(自身を含む): 32215680

約数和(自身を除く): 11329502

約数列:

[1, 2, 67, 79, 134, 158, 1973, 3946, 5293, 10586, 132191, 155867, 264382, 311734, 10443089, 20886178]

約数ペア:

[(1, 20886178), (2, 10443089), (67, 311734), (79, 264382), (134, 155867), (158, 132191), (1973, 10586), (3946, 5293)]