498998721

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{587}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 730211328

約数和(自身を除く): 231212607

約数列:

[1, 3, 13, 39, 71, 213, 307, 587, 921, 923, 1761, 2769, 3991, 7631, 11973, 21797, 22893, 41677, 65391, 125031, 180209, 283361, 540627, 541801, 850083, 1625403, 2342717, 7028151, 12794839, 38384517, 166332907, 498998721]

約数ペア:

[(1, 498998721), (3, 166332907), (13, 38384517), (39, 12794839), (71, 7028151), (213, 2342717), (307, 1625403), (587, 850083), (921, 541801), (923, 540627), (1761, 283361), (2769, 180209), (3991, 125031), (7631, 65391), (11973, 41677), (21797, 22893)]