1643964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19571}}^1$

素因数の和:19585

約数の個数: 24

約数和(自身を含む): 4384128

約数和(自身を除く): 2740164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 19571, 39142, 58713, 78284, 117426, 136997, 234852, 273994, 410991, 547988, 821982, 1643964]

約数ペア:

[(1, 1643964), (2, 821982), (3, 547988), (4, 410991), (6, 273994), (7, 234852), (12, 136997), (14, 117426), (21, 78284), (28, 58713), (42, 39142), (84, 19571)]