18932718

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 44717184

約数和(自身を除く): 25784466

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 71, 98, 142, 147, 213, 294, 426, 497, 907, 994, 1491, 1814, 2721, 2982, 3479, 5442, 6349, 6958, 10437, 12698, 19047, 20874, 38094, 44443, 64397, 88886, 128794, 133329, 193191, 266658, 386382, 450779, 901558, 1352337, 2704674, 3155453, 6310906, 9466359, 18932718]

約数ペア:

[(1, 18932718), (2, 9466359), (3, 6310906), (6, 3155453), (7, 2704674), (14, 1352337), (21, 901558), (42, 450779), (49, 386382), (71, 266658), (98, 193191), (142, 133329), (147, 128794), (213, 88886), (294, 64397), (426, 44443), (497, 38094), (907, 20874), (994, 19047), (1491, 12698), (1814, 10437), (2721, 6958), (2982, 6349), (3479, 5442)]