208344409

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 263889920

約数和(自身を除く): 55545511

約数列:

[1, 7, 13, 73, 79, 91, 397, 511, 553, 949, 1027, 2779, 5161, 5767, 6643, 7189, 28981, 31363, 36127, 40369, 74971, 202867, 219541, 376753, 407719, 524797, 2289499, 2637271, 2854033, 16026493, 29763487, 208344409]

約数ペア:

[(1, 208344409), (7, 29763487), (13, 16026493), (73, 2854033), (79, 2637271), (91, 2289499), (397, 524797), (511, 407719), (553, 376753), (949, 219541), (1027, 202867), (2779, 74971), (5161, 40369), (5767, 36127), (6643, 31363), (7189, 28981)]