20838005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3659}}^1$

素因数の和:3748

約数の個数: 16

約数和(自身を含む): 26879040

約数和(自身を除く): 6041035

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3659, 5695, 18295, 62203, 245153, 311015, 1225765, 4167601, 20838005]

約数ペア:

[(1, 20838005), (5, 4167601), (17, 1225765), (67, 311015), (85, 245153), (335, 62203), (1139, 18295), (3659, 5695)]