21755055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{207191}}^1$

素因数の和:207206

約数の個数: 16

約数和(自身を含む): 39780864

約数和(自身を除く): 18025809

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 207191, 621573, 1035955, 1450337, 3107865, 4351011, 7251685, 21755055]

約数ペア:

[(1, 21755055), (3, 7251685), (5, 4351011), (7, 3107865), (15, 1450337), (21, 1035955), (35, 621573), (105, 207191)]