20764506

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 49508352

約数和(自身を除く): 28743846

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 67, 94, 134, 141, 157, 201, 282, 314, 329, 402, 469, 471, 658, 938, 942, 987, 1099, 1407, 1974, 2198, 2814, 3149, 3297, 6298, 6594, 7379, 9447, 10519, 14758, 18894, 21038, 22043, 22137, 31557, 44086, 44274, 51653, 63114, 66129, 73633, 103306, 132258, 147266, 154959, 220899, 309918, 441798, 494393, 988786, 1483179, 2966358, 3460751, 6921502, 10382253, 20764506]

約数ペア:

[(1, 20764506), (2, 10382253), (3, 6921502), (6, 3460751), (7, 2966358), (14, 1483179), (21, 988786), (42, 494393), (47, 441798), (67, 309918), (94, 220899), (134, 154959), (141, 147266), (157, 132258), (201, 103306), (282, 73633), (314, 66129), (329, 63114), (402, 51653), (469, 44274), (471, 44086), (658, 31557), (938, 22137), (942, 22043), (987, 21038), (1099, 18894), (1407, 14758), (1974, 10519), (2198, 9447), (2814, 7379), (3149, 6594), (3297, 6298)]