1561191982

素因数分解:

$2^1\times 7^1\times {\mathrm{7013}}^1\times {\mathrm{15901}}^1$

素因数の和:22923

約数の個数: 16

約数和(自身を含む): 2676879072

約数和(自身を除く): 1115687090

約数列:

[1, 2, 7, 14, 7013, 14026, 15901, 31802, 49091, 98182, 111307, 222614, 111513713, 223027426, 780595991, 1561191982]

約数ペア:

[(1, 1561191982), (2, 780595991), (7, 223027426), (14, 111513713), (7013, 222614), (14026, 111307), (15901, 98182), (31802, 49091)]