21587055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2477}}^1$

素因数の和:2575

約数の個数: 32

約数和(自身を含む): 39965184

約数和(自身を除く): 18378129

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2477, 2905, 7431, 8715, 12385, 17339, 37155, 52017, 86695, 205591, 260085, 616773, 1027955, 1439137, 3083865, 4317411, 7195685, 21587055]

約数ペア:

[(1, 21587055), (3, 7195685), (5, 4317411), (7, 3083865), (15, 1439137), (21, 1027955), (35, 616773), (83, 260085), (105, 205591), (249, 86695), (415, 52017), (581, 37155), (1245, 17339), (1743, 12385), (2477, 8715), (2905, 7431)]