19419813

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1549}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 32240000

約数和(自身を除く): 12820187

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1393, 1549, 1791, 4179, 4647, 10843, 12537, 13941, 32529, 97587, 308251, 924753, 2157757, 2774259, 6473271, 19419813]

約数ペア:

[(1, 19419813), (3, 6473271), (7, 2774259), (9, 2157757), (21, 924753), (63, 308251), (199, 97587), (597, 32529), (1393, 13941), (1549, 12537), (1791, 10843), (4179, 4647)]