199935981

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59879}}^1$

素因数の和:59945

約数の個数: 24

約数和(自身を含む): 336286080

約数和(自身を除く): 136350099

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 59879, 179637, 419153, 538911, 1257459, 3173587, 3772377, 9520761, 22215109, 28562283, 66645327, 199935981]

約数ペア:

[(1, 199935981), (3, 66645327), (7, 28562283), (9, 22215109), (21, 9520761), (53, 3772377), (63, 3173587), (159, 1257459), (371, 538911), (477, 419153), (1113, 179637), (3339, 59879)]