20479966

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1871}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 33179328

約数和(自身を除く): 12699362

約数列:

[1, 2, 13, 26, 421, 842, 1871, 3742, 5473, 10946, 24323, 48646, 787691, 1575382, 10239983, 20479966]

約数ペア:

[(1, 20479966), (2, 10239983), (13, 1575382), (26, 787691), (421, 48646), (842, 24323), (1871, 10946), (3742, 5473)]