1221385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 1632960

約数和(自身を除く): 411575

約数列:

[1, 5, 11, 53, 55, 265, 419, 583, 2095, 2915, 4609, 22207, 23045, 111035, 244277, 1221385]

約数ペア:

[(1, 1221385), (5, 244277), (11, 111035), (53, 23045), (55, 22207), (265, 4609), (419, 2915), (583, 2095)]