21029440

素因数分解:

$2^6\times 5^1\times {\mathrm{65717}}^1$

素因数の和:65734

約数の個数: 28

約数和(自身を含む): 50077116

約数和(自身を除く): 29047676

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65717, 131434, 262868, 328585, 525736, 657170, 1051472, 1314340, 2102944, 2628680, 4205888, 5257360, 10514720, 21029440]

約数ペア:

[(1, 21029440), (2, 10514720), (4, 5257360), (5, 4205888), (8, 2628680), (10, 2102944), (16, 1314340), (20, 1051472), (32, 657170), (40, 525736), (64, 328585), (80, 262868), (160, 131434), (320, 65717)]