19989615

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{70139}}^1$

素因数の和:70166

約数の個数: 16

約数和(自身を含む): 33667200

約数和(自身を除く): 13677585

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 70139, 210417, 350695, 1052085, 1332641, 3997923, 6663205, 19989615]

約数ペア:

[(1, 19989615), (3, 6663205), (5, 3997923), (15, 1332641), (19, 1052085), (57, 350695), (95, 210417), (285, 70139)]