21149019

素因数分解:

$3^6\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:518

約数の個数: 28

約数和(自身を含む): 32256616

約数和(自身を除く): 11107597

約数列:

[1, 3, 9, 27, 67, 81, 201, 243, 433, 603, 729, 1299, 1809, 3897, 5427, 11691, 16281, 29011, 35073, 48843, 87033, 105219, 261099, 315657, 783297, 2349891, 7049673, 21149019]

約数ペア:

[(1, 21149019), (3, 7049673), (9, 2349891), (27, 783297), (67, 315657), (81, 261099), (201, 105219), (243, 87033), (433, 48843), (603, 35073), (729, 29011), (1299, 16281), (1809, 11691), (3897, 5427)]