21424578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11863}}^1$

素因数の和:11918

約数の個数: 32

約数和(自身を含む): 50113536

約数和(自身を除く): 28688958

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 11863, 23726, 35589, 71178, 83041, 166082, 249123, 498246, 510109, 1020218, 1530327, 3060654, 3570763, 7141526, 10712289, 21424578]

約数ペア:

[(1, 21424578), (2, 10712289), (3, 7141526), (6, 3570763), (7, 3060654), (14, 1530327), (21, 1020218), (42, 510109), (43, 498246), (86, 249123), (129, 166082), (258, 83041), (301, 71178), (602, 35589), (903, 23726), (1806, 11863)]