19987836471

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{173}}^1\times {\mathrm{127103}}^1$

素因数の和:127383

約数の個数: 24

約数和(自身を含む): 29325943296

約数和(自身を除く): 9338106825

約数列:

[1, 3, 9, 101, 173, 303, 519, 909, 1557, 17473, 52419, 127103, 157257, 381309, 1143927, 12837403, 21988819, 38512209, 65966457, 115536627, 197899371, 2220870719, 6662612157, 19987836471]

約数ペア:

[(1, 19987836471), (3, 6662612157), (9, 2220870719), (101, 197899371), (173, 115536627), (303, 65966457), (519, 38512209), (909, 21988819), (1557, 12837403), (17473, 1143927), (52419, 381309), (127103, 157257)]