21365620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{46447}}^1$

素因数の和:46479

約数の個数: 24

約数和(自身を含む): 46819584

約数和(自身を除く): 25453964

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 46447, 92894, 185788, 232235, 464470, 928940, 1068281, 2136562, 4273124, 5341405, 10682810, 21365620]

約数ペア:

[(1, 21365620), (2, 10682810), (4, 5341405), (5, 4273124), (10, 2136562), (20, 1068281), (23, 928940), (46, 464470), (92, 232235), (115, 185788), (230, 92894), (460, 46447)]