21413884

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{75401}}^1$

素因数の和:75476

約数の個数: 12

約数和(自身を含む): 38002608

約数和(自身を除く): 16588724

約数列:

[1, 2, 4, 71, 142, 284, 75401, 150802, 301604, 5353471, 10706942, 21413884]

約数ペア:

[(1, 21413884), (2, 10706942), (4, 5353471), (71, 301604), (142, 150802), (284, 75401)]