664756839

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{1031}}^1\times {\mathrm{2311}}^1$

素因数の和:3379

約数の個数: 24

約数和(自身を含む): 992569344

約数和(自身を除く): 327812505

約数列:

[1, 3, 9, 31, 93, 279, 1031, 2311, 3093, 6933, 9279, 20799, 31961, 71641, 95883, 214923, 287649, 644769, 2382641, 7147923, 21443769, 73861871, 221585613, 664756839]

約数ペア:

[(1, 664756839), (3, 221585613), (9, 73861871), (31, 21443769), (93, 7147923), (279, 2382641), (1031, 644769), (2311, 287649), (3093, 214923), (6933, 95883), (9279, 71641), (20799, 31961)]