21304877

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{787}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 24509952

約数和(自身を除く): 3205075

約数列:

[1, 11, 23, 107, 253, 787, 1177, 2461, 8657, 18101, 27071, 84209, 199111, 926299, 1936807, 21304877]

約数ペア:

[(1, 21304877), (11, 1936807), (23, 926299), (107, 199111), (253, 84209), (787, 27071), (1177, 18101), (2461, 8657)]