16981425

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1063}}^1$

素因数の和:1150

約数の個数: 36

約数和(自身を含む): 30873024

約数和(自身を除く): 13891599

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1063, 1065, 1775, 3189, 3195, 5315, 5325, 9567, 15945, 15975, 26575, 47835, 75473, 79725, 226419, 239175, 377365, 679257, 1132095, 1886825, 3396285, 5660475, 16981425]

約数ペア:

[(1, 16981425), (3, 5660475), (5, 3396285), (9, 1886825), (15, 1132095), (25, 679257), (45, 377365), (71, 239175), (75, 226419), (213, 79725), (225, 75473), (355, 47835), (639, 26575), (1063, 15975), (1065, 15945), (1775, 9567), (3189, 5325), (3195, 5315)]