239471427

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 351267840

約数和(自身を除く): 111796413

約数列:

[1, 3, 13, 39, 71, 197, 213, 439, 591, 923, 1317, 2561, 2769, 5707, 7683, 13987, 17121, 31169, 41961, 86483, 93507, 181831, 259449, 405197, 545493, 1124279, 1215591, 3372837, 6140293, 18420879, 79823809, 239471427]

約数ペア:

[(1, 239471427), (3, 79823809), (13, 18420879), (39, 6140293), (71, 3372837), (197, 1215591), (213, 1124279), (439, 545493), (591, 405197), (923, 259449), (1317, 181831), (2561, 93507), (2769, 86483), (5707, 41961), (7683, 31169), (13987, 17121)]