21268280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{48337}}^1$

素因数の和:48359

約数の個数: 32

約数和(自身を含む): 52205040

約数和(自身を除く): 30936760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 48337, 96674, 193348, 241685, 386696, 483370, 531707, 966740, 1063414, 1933480, 2126828, 2658535, 4253656, 5317070, 10634140, 21268280]

約数ペア:

[(1, 21268280), (2, 10634140), (4, 5317070), (5, 4253656), (8, 2658535), (10, 2126828), (11, 1933480), (20, 1063414), (22, 966740), (40, 531707), (44, 483370), (55, 386696), (88, 241685), (110, 193348), (220, 96674), (440, 48337)]