216038991

素因数分解:

$3^1\times 7^2\times {\mathrm{991}}^1\times {\mathrm{1483}}^1$

素因数の和:2491

約数の個数: 24

約数和(自身を含む): 335645184

約数和(自身を除く): 119606193

約数列:

[1, 3, 7, 21, 49, 147, 991, 1483, 2973, 4449, 6937, 10381, 20811, 31143, 48559, 72667, 145677, 218001, 1469653, 4408959, 10287571, 30862713, 72012997, 216038991]

約数ペア:

[(1, 216038991), (3, 72012997), (7, 30862713), (21, 10287571), (49, 4408959), (147, 1469653), (991, 218001), (1483, 145677), (2973, 72667), (4449, 48559), (6937, 31143), (10381, 20811)]