21330470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{661}}^1$

素因数の和:1136

約数の個数: 32

約数和(自身を含む): 44041536

約数和(自身を除く): 22711066

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 461, 661, 922, 1322, 2305, 3227, 3305, 4610, 4627, 6454, 6610, 9254, 16135, 23135, 32270, 46270, 304721, 609442, 1523605, 2133047, 3047210, 4266094, 10665235, 21330470]

約数ペア:

[(1, 21330470), (2, 10665235), (5, 4266094), (7, 3047210), (10, 2133047), (14, 1523605), (35, 609442), (70, 304721), (461, 46270), (661, 32270), (922, 23135), (1322, 16135), (2305, 9254), (3227, 6610), (3305, 6454), (4610, 4627)]