21210019917

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{5210027}}^1$

素因数の和:5210112

約数の個数: 16

約数和(自身を含む): 30009761280

約数和(自身を除く): 8799741363

約数列:

[1, 3, 23, 59, 69, 177, 1357, 4071, 5210027, 15630081, 119830621, 307391593, 359491863, 922174779, 7070006639, 21210019917]

約数ペア:

[(1, 21210019917), (3, 7070006639), (23, 922174779), (59, 359491863), (69, 307391593), (177, 119830621), (1357, 15630081), (4071, 5210027)]