21167691

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{3407}}^1$

素因数の和:3538

約数の個数: 16

約数和(自身を含む): 29990400

約数和(自身を除く): 8822709

約数列:

[1, 3, 19, 57, 109, 327, 2071, 3407, 6213, 10221, 64733, 194199, 371363, 1114089, 7055897, 21167691]

約数ペア:

[(1, 21167691), (3, 7055897), (19, 1114089), (57, 371363), (109, 194199), (327, 64733), (2071, 10221), (3407, 6213)]