647402013

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{821}}^1\times {\mathrm{2137}}^1$

素因数の和:3005

約数の個数: 24

約数和(自身を含む): 959560056

約数和(自身を除く): 312158043

約数列:

[1, 3, 9, 41, 123, 369, 821, 2137, 2463, 6411, 7389, 19233, 33661, 87617, 100983, 262851, 302949, 788553, 1754477, 5263431, 15790293, 71933557, 215800671, 647402013]

約数ペア:

[(1, 647402013), (3, 215800671), (9, 71933557), (41, 15790293), (123, 5263431), (369, 1754477), (821, 788553), (2137, 302949), (2463, 262851), (6411, 100983), (7389, 87617), (19233, 33661)]