21430871

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12101}}^1$

素因数の和:12142

約数の個数: 16

約数和(自身を含む): 27883008

約数和(自身を除く): 6452137

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 12101, 84707, 133111, 278323, 931777, 1948261, 3061553, 21430871]

約数ペア:

[(1, 21430871), (7, 3061553), (11, 1948261), (23, 931777), (77, 278323), (161, 133111), (253, 84707), (1771, 12101)]