18089799

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 32169984

約数和(自身を除く): 14080185

約数列:

[1, 3, 7, 13, 21, 23, 39, 43, 67, 69, 91, 129, 161, 201, 273, 299, 301, 469, 483, 559, 871, 897, 903, 989, 1407, 1541, 1677, 2093, 2613, 2881, 2967, 3913, 4623, 6097, 6279, 6923, 8643, 10787, 11739, 12857, 18291, 20033, 20167, 20769, 32361, 37453, 38571, 60099, 60501, 66263, 89999, 112359, 140231, 198789, 262171, 269997, 420693, 463841, 786513, 861419, 1391523, 2584257, 6029933, 18089799]

約数ペア:

[(1, 18089799), (3, 6029933), (7, 2584257), (13, 1391523), (21, 861419), (23, 786513), (39, 463841), (43, 420693), (67, 269997), (69, 262171), (91, 198789), (129, 140231), (161, 112359), (201, 89999), (273, 66263), (299, 60501), (301, 60099), (469, 38571), (483, 37453), (559, 32361), (871, 20769), (897, 20167), (903, 20033), (989, 18291), (1407, 12857), (1541, 11739), (1677, 10787), (2093, 8643), (2613, 6923), (2881, 6279), (2967, 6097), (3913, 4623)]