21919977

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{14243}}^1$

素因数の和:14274

約数の個数: 20

約数和(自身を含む): 34470480

約数和(自身を除く): 12550503

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 14243, 42729, 128187, 270617, 384561, 811851, 1153683, 2435553, 7306659, 21919977]

約数ペア:

[(1, 21919977), (3, 7306659), (9, 2435553), (19, 1153683), (27, 811851), (57, 384561), (81, 270617), (171, 128187), (513, 42729), (1539, 14243)]