19840784

素因数分解:

$2^4\times {\mathrm{547}}^1\times {\mathrm{2267}}^1$

素因数の和:2822

約数の個数: 20

約数和(自身を含む): 38528784

約数和(自身を除く): 18688000

約数列:

[1, 2, 4, 8, 16, 547, 1094, 2188, 2267, 4376, 4534, 8752, 9068, 18136, 36272, 1240049, 2480098, 4960196, 9920392, 19840784]

約数ペア:

[(1, 19840784), (2, 9920392), (4, 4960196), (8, 2480098), (16, 1240049), (547, 36272), (1094, 18136), (2188, 9068), (2267, 8752), (4376, 4534)]