21183039

素因数分解:

$3^5\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 10790721

約数列:

[1, 3, 9, 27, 81, 179, 243, 487, 537, 1461, 1611, 4383, 4833, 13149, 14499, 39447, 43497, 87173, 118341, 261519, 784557, 2353671, 7061013, 21183039]

約数ペア:

[(1, 21183039), (3, 7061013), (9, 2353671), (27, 784557), (81, 261519), (179, 118341), (243, 87173), (487, 43497), (537, 39447), (1461, 14499), (1611, 13149), (4383, 4833)]