21563828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37699}}^1$

素因数の和:37727

約数の個数: 24

約数和(自身を含む): 44335200

約数和(自身を除く): 22771372

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37699, 75398, 150796, 414689, 490087, 829378, 980174, 1658756, 1960348, 5390957, 10781914, 21563828]

約数ペア:

[(1, 21563828), (2, 10781914), (4, 5390957), (11, 1960348), (13, 1658756), (22, 980174), (26, 829378), (44, 490087), (52, 414689), (143, 150796), (286, 75398), (572, 37699)]