21160041

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 33547008

約数和(自身を除く): 12386967

約数列:

[1, 3, 7, 21, 37, 111, 113, 241, 259, 339, 723, 777, 791, 1687, 2373, 4181, 5061, 8917, 12543, 26751, 27233, 29267, 62419, 81699, 87801, 187257, 190631, 571893, 1007621, 3022863, 7053347, 21160041]

約数ペア:

[(1, 21160041), (3, 7053347), (7, 3022863), (21, 1007621), (37, 571893), (111, 190631), (113, 187257), (241, 87801), (259, 81699), (339, 62419), (723, 29267), (777, 27233), (791, 26751), (1687, 12543), (2373, 8917), (4181, 5061)]