21380731

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 23298048

約数和(自身を除く): 1917317

約数列:

[1, 23, 31, 157, 191, 713, 3611, 4393, 4867, 5921, 29987, 111941, 136183, 689701, 929597, 21380731]

約数ペア:

[(1, 21380731), (23, 929597), (31, 689701), (157, 136183), (191, 111941), (713, 29987), (3611, 5921), (4393, 4867)]