21231236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1453}}^1$

素因数の和:1751

約数の個数: 24

約数和(自身を含む): 40182744

約数和(自身を除く): 18951508

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 1453, 2906, 3653, 5812, 7306, 14612, 18889, 37778, 75556, 408293, 816586, 1633172, 5307809, 10615618, 21231236]

約数ペア:

[(1, 21231236), (2, 10615618), (4, 5307809), (13, 1633172), (26, 816586), (52, 408293), (281, 75556), (562, 37778), (1124, 18889), (1453, 14612), (2906, 7306), (3653, 5812)]