21647395

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{953}}^1$

素因数の和:1035

約数の個数: 32

約数和(自身を含む): 32970240

約数和(自身を除く): 11322845

約数列:

[1, 5, 7, 11, 35, 55, 59, 77, 295, 385, 413, 649, 953, 2065, 3245, 4543, 4765, 6671, 10483, 22715, 33355, 52415, 56227, 73381, 281135, 366905, 393589, 618497, 1967945, 3092485, 4329479, 21647395]

約数ペア:

[(1, 21647395), (5, 4329479), (7, 3092485), (11, 1967945), (35, 618497), (55, 393589), (59, 366905), (77, 281135), (295, 73381), (385, 56227), (413, 52415), (649, 33355), (953, 22715), (2065, 10483), (3245, 6671), (4543, 4765)]