971109

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:662

約数の個数: 20

約数和(自身を含む): 1529440

約数和(自身を除く): 558331

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 631, 1539, 1893, 5679, 11989, 17037, 35967, 51111, 107901, 323703, 971109]

約数ペア:

[(1, 971109), (3, 323703), (9, 107901), (19, 51111), (27, 35967), (57, 17037), (81, 11989), (171, 5679), (513, 1893), (631, 1539)]