388792089

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{30703}}^1$

素因数の和:30786

約数の個数: 32

約数和(自身を含む): 668119040

約数和(自身を除く): 279326951

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1809, 4221, 12663, 30703, 92109, 214921, 276327, 644763, 828981, 1934289, 2057101, 5802867, 6171303, 14399707, 18513909, 43199121, 55541727, 129597363, 388792089]

約数ペア:

[(1, 388792089), (3, 129597363), (7, 55541727), (9, 43199121), (21, 18513909), (27, 14399707), (63, 6171303), (67, 5802867), (189, 2057101), (201, 1934289), (469, 828981), (603, 644763), (1407, 276327), (1809, 214921), (4221, 92109), (12663, 30703)]