1688238

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{1321}}^1$

素因数の和:1400

約数の個数: 24

約数和(自身を含む): 3712176

約数和(自身を除く): 2023938

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 1321, 2642, 3963, 7926, 11889, 23778, 93791, 187582, 281373, 562746, 844119, 1688238]

約数ペア:

[(1, 1688238), (2, 844119), (3, 562746), (6, 281373), (9, 187582), (18, 93791), (71, 23778), (142, 11889), (213, 7926), (426, 3963), (639, 2642), (1278, 1321)]