20498318

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:883

約数の個数: 16

約数和(自身を含む): 31404240

約数和(自身を除く): 10905922

約数列:

[1, 2, 61, 122, 401, 419, 802, 838, 24461, 25559, 48922, 51118, 168019, 336038, 10249159, 20498318]

約数ペア:

[(1, 20498318), (2, 10249159), (61, 336038), (122, 168019), (401, 51118), (419, 48922), (802, 25559), (838, 24461)]