21068302

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2\times {\mathrm{149}}^1$

素因数の和:292

約数の個数: 24

約数和(自身を含む): 34047000

約数和(自身を除く): 12978698

約数列:

[1, 2, 19, 38, 61, 122, 149, 298, 1159, 2318, 2831, 3721, 5662, 7442, 9089, 18178, 70699, 141398, 172691, 345382, 554429, 1108858, 10534151, 21068302]

約数ペア:

[(1, 21068302), (2, 10534151), (19, 1108858), (38, 554429), (61, 345382), (122, 172691), (149, 141398), (298, 70699), (1159, 18178), (2318, 9089), (2831, 7442), (3721, 5662)]