13205895

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 21954240

約数和(自身を除く): 8748345

約数列:

[1, 3, 5, 15, 41, 109, 123, 197, 205, 327, 545, 591, 615, 985, 1635, 2955, 4469, 8077, 13407, 21473, 22345, 24231, 40385, 64419, 67035, 107365, 121155, 322095, 880393, 2641179, 4401965, 13205895]

約数ペア:

[(1, 13205895), (3, 4401965), (5, 2641179), (15, 880393), (41, 322095), (109, 121155), (123, 107365), (197, 67035), (205, 64419), (327, 40385), (545, 24231), (591, 22345), (615, 21473), (985, 13407), (1635, 8077), (2955, 4469)]