256576509

素因数分解:

$3^2\times 7^1\times {\mathrm{1321}}^1\times {\mathrm{3083}}^1$

素因数の和:4417

約数の個数: 24

約数和(自身を含む): 424012992

約数和(自身を除く): 167436483

約数列:

[1, 3, 7, 9, 21, 63, 1321, 3083, 3963, 9247, 9249, 11889, 21581, 27741, 27747, 64743, 83223, 194229, 4072643, 12217929, 28508501, 36653787, 85525503, 256576509]

約数ペア:

[(1, 256576509), (3, 85525503), (7, 36653787), (9, 28508501), (21, 12217929), (63, 4072643), (1321, 194229), (3083, 83223), (3963, 64743), (9247, 27747), (9249, 27741), (11889, 21581)]