21971169

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{24659}}^1$

素因数の和:24682

約数の個数: 20

約数和(自身を含む): 35806320

約数和(自身を除く): 13835151

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 24659, 73977, 221931, 271249, 665793, 813747, 1997379, 2441241, 7323723, 21971169]

約数ペア:

[(1, 21971169), (3, 7323723), (9, 2441241), (11, 1997379), (27, 813747), (33, 665793), (81, 271249), (99, 221931), (297, 73977), (891, 24659)]