71537921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 94203648

約数和(自身を除く): 22665727

約数列:

[1, 7, 13, 17, 91, 119, 131, 221, 353, 917, 1547, 1703, 2227, 2471, 4589, 6001, 11921, 15589, 28951, 32123, 42007, 46243, 78013, 202657, 323701, 546091, 601159, 786131, 4208113, 5502917, 10219703, 71537921]

約数ペア:

[(1, 71537921), (7, 10219703), (13, 5502917), (17, 4208113), (91, 786131), (119, 601159), (131, 546091), (221, 323701), (353, 202657), (917, 78013), (1547, 46243), (1703, 42007), (2227, 32123), (2471, 28951), (4589, 15589), (6001, 11921)]