90018891

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{359}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 137894400

約数和(自身を除く): 47875509

約数列:

[1, 3, 9, 27, 37, 111, 251, 333, 359, 753, 999, 1077, 2259, 3231, 6777, 9287, 9693, 13283, 27861, 39849, 83583, 90109, 119547, 250749, 270327, 358641, 810981, 2432943, 3334033, 10002099, 30006297, 90018891]

約数ペア:

[(1, 90018891), (3, 30006297), (9, 10002099), (27, 3334033), (37, 2432943), (111, 810981), (251, 358641), (333, 270327), (359, 250749), (753, 119547), (999, 90109), (1077, 83583), (2259, 39849), (3231, 27861), (6777, 13283), (9287, 9693)]