21828100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31183}}^1$

素因数の和:31204

約数の個数: 36

約数和(自身を含む): 54135424

約数和(自身を除く): 32307324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 31183, 62366, 124732, 155915, 218281, 311830, 436562, 623660, 779575, 873124, 1091405, 1559150, 2182810, 3118300, 4365620, 5457025, 10914050, 21828100]

約数ペア:

[(1, 21828100), (2, 10914050), (4, 5457025), (5, 4365620), (7, 3118300), (10, 2182810), (14, 1559150), (20, 1091405), (25, 873124), (28, 779575), (35, 623660), (50, 436562), (70, 311830), (100, 218281), (140, 155915), (175, 124732), (350, 62366), (700, 31183)]