20307693

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 11690259

約数列:

[1, 3, 7, 21, 61, 83, 183, 191, 249, 427, 573, 581, 1281, 1337, 1743, 4011, 5063, 11651, 15189, 15853, 34953, 35441, 47559, 81557, 106323, 110971, 244671, 332913, 967033, 2901099, 6769231, 20307693]

約数ペア:

[(1, 20307693), (3, 6769231), (7, 2901099), (21, 967033), (61, 332913), (83, 244671), (183, 110971), (191, 106323), (249, 81557), (427, 47559), (573, 35441), (581, 34953), (1281, 15853), (1337, 15189), (1743, 11651), (4011, 5063)]