20696724

素因数分解:

$2^2\times 3^2\times {\mathrm{257}}^1\times {\mathrm{2237}}^1$

素因数の和:2504

約数の個数: 36

約数和(自身を含む): 52543764

約数和(自身を除く): 31847040

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 257, 514, 771, 1028, 1542, 2237, 2313, 3084, 4474, 4626, 6711, 8948, 9252, 13422, 20133, 26844, 40266, 80532, 574909, 1149818, 1724727, 2299636, 3449454, 5174181, 6898908, 10348362, 20696724]

約数ペア:

[(1, 20696724), (2, 10348362), (3, 6898908), (4, 5174181), (6, 3449454), (9, 2299636), (12, 1724727), (18, 1149818), (36, 574909), (257, 80532), (514, 40266), (771, 26844), (1028, 20133), (1542, 13422), (2237, 9252), (2313, 8948), (3084, 6711), (4474, 4626)]