21008671610

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23605249}}^1$

素因数の和:23605345

約数の個数: 16

約数和(自身を含む): 38240505000

約数和(自身を除く): 17231833390

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23605249, 47210498, 118026245, 236052490, 2100867161, 4201734322, 10504335805, 21008671610]

約数ペア:

[(1, 21008671610), (2, 10504335805), (5, 4201734322), (10, 2100867161), (89, 236052490), (178, 118026245), (445, 47210498), (890, 23605249)]