18927095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 26002944

約数和(自身を除く): 7075849

約数列:

[1, 5, 11, 43, 53, 55, 151, 215, 265, 473, 583, 755, 1661, 2279, 2365, 2915, 6493, 8003, 8305, 11395, 25069, 32465, 40015, 71423, 88033, 125345, 344129, 357115, 440165, 1720645, 3785419, 18927095]

約数ペア:

[(1, 18927095), (5, 3785419), (11, 1720645), (43, 440165), (53, 357115), (55, 344129), (151, 125345), (215, 88033), (265, 71423), (473, 40015), (583, 32465), (755, 25069), (1661, 11395), (2279, 8305), (2365, 8003), (2915, 6493)]