21000643242

素因数分解:

$2^1\times 3^1\times {\mathrm{9649}}^1\times {\mathrm{362743}}^1$

素因数の和:372397

約数の個数: 16

約数和(自身を含む): 42005755200

約数和(自身を除く): 21005111958

約数列:

[1, 2, 3, 6, 9649, 19298, 28947, 57894, 362743, 725486, 1088229, 2176458, 3500107207, 7000214414, 10500321621, 21000643242]

約数ペア:

[(1, 21000643242), (2, 10500321621), (3, 7000214414), (6, 3500107207), (9649, 2176458), (19298, 1088229), (28947, 725486), (57894, 362743)]