21128045656

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{16202489}}^1$

素因数の和:16202658

約数の個数: 16

約数和(自身を含む): 39858125400

約数和(自身を除く): 18730079744

約数列:

[1, 2, 4, 8, 163, 326, 652, 1304, 16202489, 32404978, 64809956, 129619912, 2641005707, 5282011414, 10564022828, 21128045656]

約数ペア:

[(1, 21128045656), (2, 10564022828), (4, 5282011414), (8, 2641005707), (163, 129619912), (326, 64809956), (652, 32404978), (1304, 16202489)]