681651

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 24

約数和(自身を含む): 1067040

約数和(自身を除く): 385389

約数列:

[1, 3, 9, 23, 37, 69, 89, 111, 207, 267, 333, 801, 851, 2047, 2553, 3293, 6141, 7659, 9879, 18423, 29637, 75739, 227217, 681651]

約数ペア:

[(1, 681651), (3, 227217), (9, 75739), (23, 29637), (37, 18423), (69, 9879), (89, 7659), (111, 6141), (207, 3293), (267, 2553), (333, 2047), (801, 851)]