20147393979

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{631}}^1\times {\mathrm{8387}}^1$

素因数の和:9077

約数の個数: 40

約数和(自身を含む): 30789462528

約数和(自身を除く): 10642068549

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 631, 1269, 1893, 3807, 5679, 8387, 17037, 25161, 29657, 51111, 75483, 88971, 226449, 266913, 394189, 679347, 800739, 1182567, 2402217, 3547701, 5292197, 10643103, 15876591, 31929309, 47629773, 142889319, 248733259, 428667957, 746199777, 2238599331, 6715797993, 20147393979]

約数ペア:

[(1, 20147393979), (3, 6715797993), (9, 2238599331), (27, 746199777), (47, 428667957), (81, 248733259), (141, 142889319), (423, 47629773), (631, 31929309), (1269, 15876591), (1893, 10643103), (3807, 5292197), (5679, 3547701), (8387, 2402217), (17037, 1182567), (25161, 800739), (29657, 679347), (51111, 394189), (75483, 266913), (88971, 226449)]