287510013

素因数分解:

$3^3\times 7^1\times {\mathrm{1521217}}^1$

素因数の和:1521233

約数の個数: 16

約数和(自身を含む): 486789760

約数和(自身を除く): 199279747

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1521217, 4563651, 10648519, 13690953, 31945557, 41072859, 95836671, 287510013]

約数ペア:

[(1, 287510013), (3, 95836671), (7, 41072859), (9, 31945557), (21, 13690953), (27, 10648519), (63, 4563651), (189, 1521217)]