21651441

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1949}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 34507200

約数和(自身を除く): 12855759

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 529, 1587, 1949, 3703, 5847, 11109, 13643, 40929, 44827, 134481, 313789, 941367, 1031021, 3093063, 7217147, 21651441]

約数ペア:

[(1, 21651441), (3, 7217147), (7, 3093063), (21, 1031021), (23, 941367), (69, 313789), (161, 134481), (483, 44827), (529, 40929), (1587, 13643), (1949, 11109), (3703, 5847)]