17388985

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2609}}^1$

素因数の和:2688

約数の個数: 16

約数和(自身を含む): 22049280

約数和(自身を除く): 4660295

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2609, 6665, 13045, 80879, 112187, 404395, 560935, 3477797, 17388985]

約数ペア:

[(1, 17388985), (5, 3477797), (31, 560935), (43, 404395), (155, 112187), (215, 80879), (1333, 13045), (2609, 6665)]