21497745488

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79035829}}^1$

素因数の和:79035854

約数の個数: 20

約数和(自身を含む): 44101993140

約数和(自身を除く): 22604247652

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79035829, 158071658, 316143316, 632286632, 1264573264, 1343609093, 2687218186, 5374436372, 10748872744, 21497745488]

約数ペア:

[(1, 21497745488), (2, 10748872744), (4, 5374436372), (8, 2687218186), (16, 1343609093), (17, 1264573264), (34, 632286632), (68, 316143316), (136, 158071658), (272, 79035829)]