20909902

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{8291}}^1$

素因数の和:8403

約数の個数: 16

約数和(自身を含む): 34129872

約数和(自身を除く): 13219970

約数列:

[1, 2, 13, 26, 97, 194, 1261, 2522, 8291, 16582, 107783, 215566, 804227, 1608454, 10454951, 20909902]

約数ペア:

[(1, 20909902), (2, 10454951), (13, 1608454), (26, 804227), (97, 215566), (194, 107783), (1261, 16582), (2522, 8291)]