21523075

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4241}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 31560480

約数和(自身を除く): 10037405

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 4241, 5075, 21205, 29687, 106025, 122989, 148435, 614945, 742175, 860923, 3074725, 4304615, 21523075]

約数ペア:

[(1, 21523075), (5, 4304615), (7, 3074725), (25, 860923), (29, 742175), (35, 614945), (145, 148435), (175, 122989), (203, 106025), (725, 29687), (1015, 21205), (4241, 5075)]