19992492

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42719}}^1$

素因数の和:42742

約数の個数: 36

約数和(自身を含む): 54425280

約数和(自身を除く): 34432788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42719, 85438, 128157, 170876, 256314, 384471, 512628, 555347, 768942, 1110694, 1537884, 1666041, 2221388, 3332082, 4998123, 6664164, 9996246, 19992492]

約数ペア:

[(1, 19992492), (2, 9996246), (3, 6664164), (4, 4998123), (6, 3332082), (9, 2221388), (12, 1666041), (13, 1537884), (18, 1110694), (26, 768942), (36, 555347), (39, 512628), (52, 384471), (78, 256314), (117, 170876), (156, 128157), (234, 85438), (468, 42719)]