21519535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{619}}^1$

素因数の和:1050

約数の個数: 16

約数和(自身を含む): 27453600

約数和(自身を除く): 5934065

約数列:

[1, 5, 17, 85, 409, 619, 2045, 3095, 6953, 10523, 34765, 52615, 253171, 1265855, 4303907, 21519535]

約数ペア:

[(1, 21519535), (5, 4303907), (17, 1265855), (85, 253171), (409, 52615), (619, 34765), (2045, 10523), (3095, 6953)]