21407056

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121631}}^1$

素因数の和:121650

約数の個数: 20

約数和(自身を含む): 45247104

約数和(自身を除く): 23840048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121631, 243262, 486524, 973048, 1337941, 1946096, 2675882, 5351764, 10703528, 21407056]

約数ペア:

[(1, 21407056), (2, 10703528), (4, 5351764), (8, 2675882), (11, 1946096), (16, 1337941), (22, 973048), (44, 486524), (88, 243262), (176, 121631)]