20989672

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{238519}}^1$

素因数の和:238536

約数の個数: 16

約数和(自身を含む): 42933600

約数和(自身を除く): 21943928

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 238519, 477038, 954076, 1908152, 2623709, 5247418, 10494836, 20989672]

約数ペア:

[(1, 20989672), (2, 10494836), (4, 5247418), (8, 2623709), (11, 1908152), (22, 954076), (44, 477038), (88, 238519)]