21566111

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 6081889

約数列:

[1, 7, 23, 29, 31, 149, 161, 203, 217, 667, 713, 899, 1043, 3427, 4321, 4619, 4669, 4991, 6293, 20677, 23989, 30247, 32333, 99383, 106237, 133951, 144739, 695681, 743659, 937657, 3080873, 21566111]

約数ペア:

[(1, 21566111), (7, 3080873), (23, 937657), (29, 743659), (31, 695681), (149, 144739), (161, 133951), (203, 106237), (217, 99383), (667, 32333), (713, 30247), (899, 23989), (1043, 20677), (3427, 6293), (4321, 4991), (4619, 4669)]