18542972

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1063}}^1$

素因数の和:1170

約数の個数: 36

約数和(自身を含む): 38208240

約数和(自身を除く): 19665268

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1063, 1246, 2126, 2492, 4252, 4361, 7441, 8722, 14882, 17444, 29764, 52087, 94607, 104174, 189214, 208348, 378428, 662249, 1324498, 2648996, 4635743, 9271486, 18542972]

約数ペア:

[(1, 18542972), (2, 9271486), (4, 4635743), (7, 2648996), (14, 1324498), (28, 662249), (49, 378428), (89, 208348), (98, 189214), (178, 104174), (196, 94607), (356, 52087), (623, 29764), (1063, 17444), (1246, 14882), (2126, 8722), (2492, 7441), (4252, 4361)]