18970419

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 30357504

約数和(自身を除く): 11387085

約数列:

[1, 3, 13, 17, 31, 39, 51, 71, 93, 169, 213, 221, 403, 507, 527, 663, 923, 1207, 1209, 1581, 2201, 2769, 2873, 3621, 5239, 6603, 6851, 8619, 11999, 15691, 15717, 20553, 28613, 35997, 37417, 47073, 85839, 89063, 112251, 203983, 267189, 371969, 486421, 611949, 1115907, 1459263, 6323473, 18970419]

約数ペア:

[(1, 18970419), (3, 6323473), (13, 1459263), (17, 1115907), (31, 611949), (39, 486421), (51, 371969), (71, 267189), (93, 203983), (169, 112251), (213, 89063), (221, 85839), (403, 47073), (507, 37417), (527, 35997), (663, 28613), (923, 20553), (1207, 15717), (1209, 15691), (1581, 11999), (2201, 8619), (2769, 6851), (2873, 6603), (3621, 5239)]