389165973

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{3559}}^1$

素因数の和:3737

約数の個数: 32

約数和(自身を含む): 612433920

約数和(自身を除く): 223267947

約数列:

[1, 3, 7, 21, 41, 123, 127, 287, 381, 861, 889, 2667, 3559, 5207, 10677, 15621, 24913, 36449, 74739, 109347, 145919, 437757, 451993, 1021433, 1355979, 3064299, 3163951, 9491853, 18531713, 55595139, 129721991, 389165973]

約数ペア:

[(1, 389165973), (3, 129721991), (7, 55595139), (21, 18531713), (41, 9491853), (123, 3163951), (127, 3064299), (287, 1355979), (381, 1021433), (861, 451993), (889, 437757), (2667, 145919), (3559, 109347), (5207, 74739), (10677, 36449), (15621, 24913)]