21738874

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{641}}^1$

素因数の和:1221

約数の個数: 16

約数和(自身を含む): 33774336

約数和(自身を除く): 12035462

約数列:

[1, 2, 31, 62, 547, 641, 1094, 1282, 16957, 19871, 33914, 39742, 350627, 701254, 10869437, 21738874]

約数ペア:

[(1, 21738874), (2, 10869437), (31, 701254), (62, 350627), (547, 39742), (641, 33914), (1094, 19871), (1282, 16957)]