21172052

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20921}}^1$

素因数の和:20959

約数の個数: 24

約数和(自身を含む): 42178752

約数和(自身を除く): 21006700

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20921, 41842, 83684, 230131, 460262, 481183, 920524, 962366, 1924732, 5293013, 10586026, 21172052]

約数ペア:

[(1, 21172052), (2, 10586026), (4, 5293013), (11, 1924732), (22, 962366), (23, 920524), (44, 481183), (46, 460262), (92, 230131), (253, 83684), (506, 41842), (1012, 20921)]