20551636

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23677}}^1$

素因数の和:23719

約数の個数: 24

約数和(自身を含む): 42430976

約数和(自身を除く): 21879340

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23677, 47354, 94708, 165739, 331478, 662956, 733987, 1467974, 2935948, 5137909, 10275818, 20551636]

約数ペア:

[(1, 20551636), (2, 10275818), (4, 5137909), (7, 2935948), (14, 1467974), (28, 733987), (31, 662956), (62, 331478), (124, 165739), (217, 94708), (434, 47354), (868, 23677)]