1997887329

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{503}}^1\times {\mathrm{937}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 2987792640

約数和(自身を除く): 989905311

約数列:

[1, 3, 9, 27, 157, 471, 503, 937, 1413, 1509, 2811, 4239, 4527, 8433, 13581, 25299, 78971, 147109, 236913, 441327, 471311, 710739, 1323981, 1413933, 2132217, 3971943, 4241799, 12725397, 73995827, 221987481, 665962443, 1997887329]

約数ペア:

[(1, 1997887329), (3, 665962443), (9, 221987481), (27, 73995827), (157, 12725397), (471, 4241799), (503, 3971943), (937, 2132217), (1413, 1413933), (1509, 1323981), (2811, 710739), (4239, 471311), (4527, 441327), (8433, 236913), (13581, 147109), (25299, 78971)]