20835568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1049

約数の個数: 40

約数和(自身を含む): 43920800

約数和(自身を除く): 23085232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 919, 1417, 1744, 1838, 2834, 3676, 5668, 7352, 11336, 11947, 14704, 22672, 23894, 47788, 95576, 100171, 191152, 200342, 400684, 801368, 1302223, 1602736, 2604446, 5208892, 10417784, 20835568]

約数ペア:

[(1, 20835568), (2, 10417784), (4, 5208892), (8, 2604446), (13, 1602736), (16, 1302223), (26, 801368), (52, 400684), (104, 200342), (109, 191152), (208, 100171), (218, 95576), (436, 47788), (872, 23894), (919, 22672), (1417, 14704), (1744, 11947), (1838, 11336), (2834, 7352), (3676, 5668)]