20346470421

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{644753}}^1$

素因数の和:644980

約数の個数: 16

約数和(自身を含む): 27708947904

約数和(自身を除く): 7362477483

約数列:

[1, 3, 67, 157, 201, 471, 10519, 31557, 644753, 1934259, 43198451, 101226221, 129595353, 303678663, 6782156807, 20346470421]

約数ペア:

[(1, 20346470421), (3, 6782156807), (67, 303678663), (157, 129595353), (201, 101226221), (471, 43198451), (10519, 1934259), (31557, 644753)]