201821991

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{331399}}^1$

素因数の和:331438

約数の個数: 16

約数和(自身を含む): 318144000

約数和(自身を除く): 116322009

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 331399, 994197, 2319793, 6959379, 9610571, 28831713, 67273997, 201821991]

約数ペア:

[(1, 201821991), (3, 67273997), (7, 28831713), (21, 9610571), (29, 6959379), (87, 2319793), (203, 994197), (609, 331399)]