208039221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{26539}}^1$

素因数の和:26625

約数の個数: 24

約数和(自身を含む): 328459040

約数和(自身を除く): 120419819

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 7839, 26539, 79617, 238851, 345007, 1035021, 1778113, 3105063, 5334339, 16003017, 23115469, 69346407, 208039221]

約数ペア:

[(1, 208039221), (3, 69346407), (9, 23115469), (13, 16003017), (39, 5334339), (67, 3105063), (117, 1778113), (201, 1035021), (603, 345007), (871, 238851), (2613, 79617), (7839, 26539)]