21117760

素因数分解:

$2^6\times 5^1\times {\mathrm{65993}}^1$

素因数の和:66010

約数の個数: 28

約数和(自身を含む): 50287428

約数和(自身を除く): 29169668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65993, 131986, 263972, 329965, 527944, 659930, 1055888, 1319860, 2111776, 2639720, 4223552, 5279440, 10558880, 21117760]

約数ペア:

[(1, 21117760), (2, 10558880), (4, 5279440), (5, 4223552), (8, 2639720), (10, 2111776), (16, 1319860), (20, 1055888), (32, 659930), (40, 527944), (64, 329965), (80, 263972), (160, 131986), (320, 65993)]