21615672968

素因数分解:

$2^3\times {\mathrm{1669}}^1\times {\mathrm{1618909}}^1$

素因数の和:1620584

約数の個数: 16

約数和(自身を含む): 40553695500

約数和(自身を除く): 18938022532

約数列:

[1, 2, 4, 8, 1669, 3338, 6676, 13352, 1618909, 3237818, 6475636, 12951272, 2701959121, 5403918242, 10807836484, 21615672968]

約数ペア:

[(1, 21615672968), (2, 10807836484), (4, 5403918242), (8, 2701959121), (1669, 12951272), (3338, 6475636), (6676, 3237818), (13352, 1618909)]