19828885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{887}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 25318656

約数和(自身を除く): 5489771

約数列:

[1, 5, 17, 85, 263, 887, 1315, 4435, 4471, 15079, 22355, 75395, 233281, 1166405, 3965777, 19828885]

約数ペア:

[(1, 19828885), (5, 3965777), (17, 1166405), (85, 233281), (263, 75395), (887, 22355), (1315, 15079), (4435, 4471)]