67638718

素因数分解:

$2^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{9721}}^1$

素因数の和:9808

約数の個数: 24

約数和(自身を含む): 119697264

約数和(自身を除く): 52058546

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 497, 994, 3479, 6958, 9721, 19442, 68047, 136094, 476329, 690191, 952658, 1380382, 4831337, 9662674, 33819359, 67638718]

約数ペア:

[(1, 67638718), (2, 33819359), (7, 9662674), (14, 4831337), (49, 1380382), (71, 952658), (98, 690191), (142, 476329), (497, 136094), (994, 68047), (3479, 19442), (6958, 9721)]