255351621

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{8101}}^1$

素因数の和:8209

約数の個数: 32

約数和(自身を含む): 414822400

約数和(自身を除く): 159470779

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 1501, 1659, 4503, 8101, 10507, 24303, 31521, 56707, 153919, 170121, 461757, 639979, 1077433, 1919937, 3232299, 4479853, 12159601, 13439559, 36478803, 85117207, 255351621]

約数ペア:

[(1, 255351621), (3, 85117207), (7, 36478803), (19, 13439559), (21, 12159601), (57, 4479853), (79, 3232299), (133, 1919937), (237, 1077433), (399, 639979), (553, 461757), (1501, 170121), (1659, 153919), (4503, 56707), (8101, 31521), (10507, 24303)]