217444415

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 279248256

約数和(自身を除く): 61803841

約数列:

[1, 5, 23, 97, 101, 115, 193, 485, 505, 965, 2231, 2323, 4439, 9797, 11155, 11615, 18721, 19493, 22195, 48985, 93605, 97465, 225331, 430583, 448339, 1126655, 1890821, 2152915, 2241695, 9454105, 43488883, 217444415]

約数ペア:

[(1, 217444415), (5, 43488883), (23, 9454105), (97, 2241695), (101, 2152915), (115, 1890821), (193, 1126655), (485, 448339), (505, 430583), (965, 225331), (2231, 97465), (2323, 93605), (4439, 48985), (9797, 22195), (11155, 19493), (11615, 18721)]