279785233

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 353534720

約数和(自身を除く): 73749487

約数列:

[1, 7, 13, 67, 91, 109, 421, 469, 763, 871, 1417, 2947, 5473, 6097, 7303, 9919, 28207, 38311, 45889, 51121, 94939, 197449, 321223, 366691, 596557, 664573, 2566837, 3074563, 4175899, 21521941, 39969319, 279785233]

約数ペア:

[(1, 279785233), (7, 39969319), (13, 21521941), (67, 4175899), (91, 3074563), (109, 2566837), (421, 664573), (469, 596557), (763, 366691), (871, 321223), (1417, 197449), (2947, 94939), (5473, 51121), (6097, 45889), (7303, 38311), (9919, 28207)]