20800347

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1\times {\mathrm{421}}^1$

素因数の和:850

約数の個数: 16

約数和(自身を含む): 28520448

約数和(自身を除く): 7720101

約数列:

[1, 3, 43, 129, 383, 421, 1149, 1263, 16469, 18103, 49407, 54309, 161243, 483729, 6933449, 20800347]

約数ペア:

[(1, 20800347), (3, 6933449), (43, 483729), (129, 161243), (383, 54309), (421, 49407), (1149, 18103), (1263, 16469)]