21365796688

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43076203}}^1$

素因数の和:43076242

約数の個数: 20

約数和(自身を含む): 42731594368

約数和(自身を除く): 21365797680

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43076203, 86152406, 172304812, 344609624, 689219248, 1335362293, 2670724586, 5341449172, 10682898344, 21365796688]

約数ペア:

[(1, 21365796688), (2, 10682898344), (4, 5341449172), (8, 2670724586), (16, 1335362293), (31, 689219248), (62, 344609624), (124, 172304812), (248, 86152406), (496, 43076203)]