21351430

素因数分解:

$2^1\times 5^1\times {\mathrm{1327}}^1\times {\mathrm{1609}}^1$

素因数の和:2943

約数の個数: 16

約数和(自身を含む): 38485440

約数和(自身を除く): 17134010

約数列:

[1, 2, 5, 10, 1327, 1609, 2654, 3218, 6635, 8045, 13270, 16090, 2135143, 4270286, 10675715, 21351430]

約数ペア:

[(1, 21351430), (2, 10675715), (5, 4270286), (10, 2135143), (1327, 16090), (1609, 13270), (2654, 8045), (3218, 6635)]