21755512

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{461}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 43409520

約数和(自身を除く): 21654008

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 347, 461, 694, 922, 1388, 1844, 2776, 3688, 5899, 7837, 11798, 15674, 23596, 31348, 47192, 62696, 159967, 319934, 639868, 1279736, 2719439, 5438878, 10877756, 21755512]

約数ペア:

[(1, 21755512), (2, 10877756), (4, 5438878), (8, 2719439), (17, 1279736), (34, 639868), (68, 319934), (136, 159967), (347, 62696), (461, 47192), (694, 31348), (922, 23596), (1388, 15674), (1844, 11798), (2776, 7837), (3688, 5899)]