21576822981

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2440541}}^1$

素因数の和:2440972

約数の個数: 16

約数和(自身を含む): 32957079168

約数和(自身を除く): 11380256187

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 8841, 2440541, 7321623, 17083787, 51251361, 1027467761, 3082403283, 7192274327, 21576822981]

約数ペア:

[(1, 21576822981), (3, 7192274327), (7, 3082403283), (21, 1027467761), (421, 51251361), (1263, 17083787), (2947, 7321623), (8841, 2440541)]