20018916

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{7039}}^1$

素因数の和:7128

約数の個数: 36

約数和(自身を含む): 51251200

約数和(自身を除く): 31232284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 7039, 14078, 21117, 28156, 42234, 63351, 84468, 126702, 253404, 556081, 1112162, 1668243, 2224324, 3336486, 5004729, 6672972, 10009458, 20018916]

約数ペア:

[(1, 20018916), (2, 10009458), (3, 6672972), (4, 5004729), (6, 3336486), (9, 2224324), (12, 1668243), (18, 1112162), (36, 556081), (79, 253404), (158, 126702), (237, 84468), (316, 63351), (474, 42234), (711, 28156), (948, 21117), (1422, 14078), (2844, 7039)]