16371999

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 28514304

約数和(自身を除く): 12142305

約数列:

[1, 3, 7, 9, 21, 31, 63, 83, 93, 101, 217, 249, 279, 303, 581, 651, 707, 747, 909, 1743, 1953, 2121, 2573, 3131, 5229, 6363, 7719, 8383, 9393, 18011, 21917, 23157, 25149, 28179, 54033, 58681, 65751, 75447, 162099, 176043, 197253, 259873, 528129, 779619, 1819111, 2338857, 5457333, 16371999]

約数ペア:

[(1, 16371999), (3, 5457333), (7, 2338857), (9, 1819111), (21, 779619), (31, 528129), (63, 259873), (83, 197253), (93, 176043), (101, 162099), (217, 75447), (249, 65751), (279, 58681), (303, 54033), (581, 28179), (651, 25149), (707, 23157), (747, 21917), (909, 18011), (1743, 9393), (1953, 8383), (2121, 7719), (2573, 6363), (3131, 5229)]