20457738

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{54121}}^1$

素因数の和:54139

約数の個数: 32

約数和(自身を含む): 51957120

約数和(自身を除く): 31499382

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 54121, 108242, 162363, 324726, 378847, 487089, 757694, 974178, 1136541, 1461267, 2273082, 2922534, 3409623, 6819246, 10228869, 20457738]

約数ペア:

[(1, 20457738), (2, 10228869), (3, 6819246), (6, 3409623), (7, 2922534), (9, 2273082), (14, 1461267), (18, 1136541), (21, 974178), (27, 757694), (42, 487089), (54, 378847), (63, 324726), (126, 162363), (189, 108242), (378, 54121)]