201866805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640847}}^1$

素因数の和:640865

約数の個数: 24

約数和(自身を含む): 399889152

約数和(自身を除く): 198022347

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640847, 1922541, 3204235, 4485929, 5767623, 9612705, 13457787, 22429645, 28838115, 40373361, 67288935, 201866805]

約数ペア:

[(1, 201866805), (3, 67288935), (5, 40373361), (7, 28838115), (9, 22429645), (15, 13457787), (21, 9612705), (35, 5767623), (45, 4485929), (63, 3204235), (105, 1922541), (315, 640847)]