20040421

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{983}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 22435200

約数和(自身を除く): 2394779

約数列:

[1, 19, 29, 37, 551, 703, 983, 1073, 18677, 20387, 28507, 36371, 541633, 691049, 1054759, 20040421]

約数ペア:

[(1, 20040421), (19, 1054759), (29, 691049), (37, 541633), (551, 36371), (703, 28507), (983, 20387), (1073, 18677)]