19358787

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 30818304

約数和(自身を除く): 11459517

約数列:

[1, 3, 7, 21, 31, 93, 131, 217, 227, 393, 651, 681, 917, 1589, 2751, 4061, 4767, 7037, 12183, 21111, 28427, 29737, 49259, 85281, 89211, 147777, 208159, 624477, 921847, 2765541, 6452929, 19358787]

約数ペア:

[(1, 19358787), (3, 6452929), (7, 2765541), (21, 921847), (31, 624477), (93, 208159), (131, 147777), (217, 89211), (227, 85281), (393, 49259), (651, 29737), (681, 28427), (917, 21111), (1589, 12183), (2751, 7037), (4061, 4767)]