20883565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 28494720

約数和(自身を除く): 7611155

約数列:

[1, 5, 17, 19, 67, 85, 95, 193, 323, 335, 965, 1139, 1273, 1615, 3281, 3667, 5695, 6365, 12931, 16405, 18335, 21641, 62339, 64655, 108205, 219827, 245689, 311695, 1099135, 1228445, 4176713, 20883565]

約数ペア:

[(1, 20883565), (5, 4176713), (17, 1228445), (19, 1099135), (67, 311695), (85, 245689), (95, 219827), (193, 108205), (323, 64655), (335, 62339), (965, 21641), (1139, 18335), (1273, 16405), (1615, 12931), (3281, 6365), (3667, 5695)]