21029371

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 24307200

約数和(自身を除く): 3277829

約数列:

[1, 11, 19, 209, 239, 421, 2629, 4541, 4631, 7999, 49951, 87989, 100619, 1106809, 1911761, 21029371]

約数ペア:

[(1, 21029371), (11, 1911761), (19, 1106809), (209, 100619), (239, 87989), (421, 49951), (2629, 7999), (4541, 4631)]