201777639

素因数分解:

$3^1\times 7^4\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 317969520

約数和(自身を除く): 116191881

約数列:

[1, 3, 7, 21, 49, 109, 147, 257, 327, 343, 763, 771, 1029, 1799, 2289, 2401, 5341, 5397, 7203, 12593, 16023, 28013, 37387, 37779, 84039, 88151, 112161, 196091, 261709, 264453, 588273, 617057, 785127, 1372637, 1851171, 4117911, 9608459, 28825377, 67259213, 201777639]

約数ペア:

[(1, 201777639), (3, 67259213), (7, 28825377), (21, 9608459), (49, 4117911), (109, 1851171), (147, 1372637), (257, 785127), (327, 617057), (343, 588273), (763, 264453), (771, 261709), (1029, 196091), (1799, 112161), (2289, 88151), (2401, 84039), (5341, 37779), (5397, 37387), (7203, 28013), (12593, 16023)]