21850689

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{13171}}^1$

素因数の和:13260

約数の個数: 16

約数和(自身を含む): 33720320

約数和(自身を除く): 11869631

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 13171, 39513, 92197, 276591, 1040509, 3121527, 7283563, 21850689]

約数ペア:

[(1, 21850689), (3, 7283563), (7, 3121527), (21, 1040509), (79, 276591), (237, 92197), (553, 39513), (1659, 13171)]