20985982

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{4517}}^1$

素因数の和:4643

約数の個数: 16

約数和(自身を含む): 33180192

約数和(自身を除く): 12194210

約数列:

[1, 2, 23, 46, 101, 202, 2323, 4517, 4646, 9034, 103891, 207782, 456217, 912434, 10492991, 20985982]

約数ペア:

[(1, 20985982), (2, 10492991), (23, 912434), (46, 456217), (101, 207782), (202, 103891), (2323, 9034), (4517, 4646)]