20521422

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 46006272

約数和(自身を除く): 25484850

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 127, 141, 191, 254, 282, 381, 382, 423, 573, 762, 846, 1143, 1146, 1719, 2286, 3438, 5969, 8977, 11938, 17907, 17954, 24257, 26931, 35814, 48514, 53721, 53862, 72771, 80793, 107442, 145542, 161586, 218313, 436626, 1140079, 2280158, 3420237, 6840474, 10260711, 20521422]

約数ペア:

[(1, 20521422), (2, 10260711), (3, 6840474), (6, 3420237), (9, 2280158), (18, 1140079), (47, 436626), (94, 218313), (127, 161586), (141, 145542), (191, 107442), (254, 80793), (282, 72771), (381, 53862), (382, 53721), (423, 48514), (573, 35814), (762, 26931), (846, 24257), (1143, 17954), (1146, 17907), (1719, 11938), (2286, 8977), (3438, 5969)]