21040138

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{1787}}^1$

素因数の和:1854

約数の個数: 24

約数和(自身を含む): 37376352

約数和(自身を除く): 16336214

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 841, 1682, 1787, 3574, 5887, 11774, 12509, 25018, 51823, 103646, 362761, 725522, 1502867, 3005734, 10520069, 21040138]

約数ペア:

[(1, 21040138), (2, 10520069), (7, 3005734), (14, 1502867), (29, 725522), (58, 362761), (203, 103646), (406, 51823), (841, 25018), (1682, 12509), (1787, 11774), (3574, 5887)]