81751964

素因数分解:

$2^2\times 7^1\times {\mathrm{1399}}^1\times {\mathrm{2087}}^1$

素因数の和:3497

約数の個数: 24

約数和(自身を含む): 163699200

約数和(自身を除く): 81947236

約数列:

[1, 2, 4, 7, 14, 28, 1399, 2087, 2798, 4174, 5596, 8348, 9793, 14609, 19586, 29218, 39172, 58436, 2919713, 5839426, 11678852, 20437991, 40875982, 81751964]

約数ペア:

[(1, 81751964), (2, 40875982), (4, 20437991), (7, 11678852), (14, 5839426), (28, 2919713), (1399, 58436), (2087, 39172), (2798, 29218), (4174, 19586), (5596, 14609), (8348, 9793)]