20121572168

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18094939}}^1$

素因数の和:18095084

約数の個数: 16

約数和(自身を含む): 37999374000

約数和(自身を除く): 17877801832

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18094939, 36189878, 72379756, 144759512, 2515196521, 5030393042, 10060786084, 20121572168]

約数ペア:

[(1, 20121572168), (2, 10060786084), (4, 5030393042), (8, 2515196521), (139, 144759512), (278, 72379756), (556, 36189878), (1112, 18094939)]