21979589

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:460

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 2281531

約数列:

[1, 17, 31, 179, 233, 527, 3043, 3961, 5549, 7223, 41707, 94333, 122791, 709019, 1292917, 21979589]

約数ペア:

[(1, 21979589), (17, 1292917), (31, 709019), (179, 122791), (233, 94333), (527, 41707), (3043, 7223), (3961, 5549)]