19001605

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 27353088

約数和(自身を除く): 8351483

約数列:

[1, 5, 7, 31, 35, 83, 155, 211, 217, 415, 581, 1055, 1085, 1477, 2573, 2905, 6541, 7385, 12865, 17513, 18011, 32705, 45787, 87565, 90055, 122591, 228935, 542903, 612955, 2714515, 3800321, 19001605]

約数ペア:

[(1, 19001605), (5, 3800321), (7, 2714515), (31, 612955), (35, 542903), (83, 228935), (155, 122591), (211, 90055), (217, 87565), (415, 45787), (581, 32705), (1055, 18011), (1085, 17513), (1477, 12865), (2573, 7385), (2905, 6541)]