21345542

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:775

約数の個数: 16

約数和(自身を含む): 32541264

約数和(自身を除く): 11195722

約数列:

[1, 2, 101, 202, 251, 421, 502, 842, 25351, 42521, 50702, 85042, 105671, 211342, 10672771, 21345542]

約数ペア:

[(1, 21345542), (2, 10672771), (101, 211342), (202, 105671), (251, 85042), (421, 50702), (502, 42521), (842, 25351)]