20513772

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{7213}}^1$

素因数の和:7302

約数の個数: 36

約数和(自身を含む): 52517920

約数和(自身を除く): 32004148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 7213, 14426, 21639, 28852, 43278, 64917, 86556, 129834, 259668, 569827, 1139654, 1709481, 2279308, 3418962, 5128443, 6837924, 10256886, 20513772]

約数ペア:

[(1, 20513772), (2, 10256886), (3, 6837924), (4, 5128443), (6, 3418962), (9, 2279308), (12, 1709481), (18, 1139654), (36, 569827), (79, 259668), (158, 129834), (237, 86556), (316, 64917), (474, 43278), (711, 28852), (948, 21639), (1422, 14426), (2844, 7213)]