21985222

素因数分解:

$2^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{853}}^1$

素因数の和:1132

約数の個数: 24

約数和(自身を含む): 38552976

約数和(自身を除く): 16567754

約数列:

[1, 2, 7, 14, 49, 98, 263, 526, 853, 1706, 1841, 3682, 5971, 11942, 12887, 25774, 41797, 83594, 224339, 448678, 1570373, 3140746, 10992611, 21985222]

約数ペア:

[(1, 21985222), (2, 10992611), (7, 3140746), (14, 1570373), (49, 448678), (98, 224339), (263, 83594), (526, 41797), (853, 25774), (1706, 12887), (1841, 11942), (3682, 5971)]