20009605

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51973}}^1$

素因数の和:51996

約数の個数: 16

約数和(自身を含む): 29937024

約数和(自身を除く): 9927419

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 51973, 259865, 363811, 571703, 1819055, 2858515, 4001921, 20009605]

約数ペア:

[(1, 20009605), (5, 4001921), (7, 2858515), (11, 1819055), (35, 571703), (55, 363811), (77, 259865), (385, 51973)]