19868937

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 30979584

約数和(自身を除く): 11110647

約数列:

[1, 3, 11, 17, 33, 51, 107, 187, 321, 331, 561, 993, 1177, 1819, 3531, 3641, 5457, 5627, 10923, 16881, 20009, 35417, 60027, 61897, 106251, 185691, 389587, 602089, 1168761, 1806267, 6622979, 19868937]

約数ペア:

[(1, 19868937), (3, 6622979), (11, 1806267), (17, 1168761), (33, 602089), (51, 389587), (107, 185691), (187, 106251), (321, 61897), (331, 60027), (561, 35417), (993, 20009), (1177, 16881), (1819, 10923), (3531, 5627), (3641, 5457)]