18789932

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2591}}^1$

素因数の和:2646

約数の個数: 36

約数和(自身を含む): 39299904

約数和(自身を除く): 20509972

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 2591, 3626, 5182, 7252, 10364, 18137, 36274, 72548, 95867, 126959, 191734, 253918, 383468, 507836, 671069, 1342138, 2684276, 4697483, 9394966, 18789932]

約数ペア:

[(1, 18789932), (2, 9394966), (4, 4697483), (7, 2684276), (14, 1342138), (28, 671069), (37, 507836), (49, 383468), (74, 253918), (98, 191734), (148, 126959), (196, 95867), (259, 72548), (518, 36274), (1036, 18137), (1813, 10364), (2591, 7252), (3626, 5182)]