18941188

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 39836160

約数和(自身を除く): 20894972

約数列:

[1, 2, 4, 7, 14, 28, 37, 47, 74, 94, 148, 188, 259, 329, 389, 518, 658, 778, 1036, 1316, 1556, 1739, 2723, 3478, 5446, 6956, 10892, 12173, 14393, 18283, 24346, 28786, 36566, 48692, 57572, 73132, 100751, 127981, 201502, 255962, 403004, 511924, 676471, 1352942, 2705884, 4735297, 9470594, 18941188]

約数ペア:

[(1, 18941188), (2, 9470594), (4, 4735297), (7, 2705884), (14, 1352942), (28, 676471), (37, 511924), (47, 403004), (74, 255962), (94, 201502), (148, 127981), (188, 100751), (259, 73132), (329, 57572), (389, 48692), (518, 36566), (658, 28786), (778, 24346), (1036, 18283), (1316, 14393), (1556, 12173), (1739, 10892), (2723, 6956), (3478, 5446)]