21639992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{245909}}^1$

素因数の和:245926

約数の個数: 16

約数和(自身を含む): 44263800

約数和(自身を除く): 22623808

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 245909, 491818, 983636, 1967272, 2704999, 5409998, 10819996, 21639992]

約数ペア:

[(1, 21639992), (2, 10819996), (4, 5409998), (8, 2704999), (11, 1967272), (22, 983636), (44, 491818), (88, 245909)]