20889934

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 35590464

約数和(自身を除く): 14700530

約数列:

[1, 2, 13, 23, 26, 46, 181, 193, 299, 362, 386, 598, 2353, 2509, 4163, 4439, 4706, 5018, 8326, 8878, 34933, 54119, 57707, 69866, 108238, 115414, 454129, 803459, 908258, 1606918, 10444967, 20889934]

約数ペア:

[(1, 20889934), (2, 10444967), (13, 1606918), (23, 908258), (26, 803459), (46, 454129), (181, 115414), (193, 108238), (299, 69866), (362, 57707), (386, 54119), (598, 34933), (2353, 8878), (2509, 8326), (4163, 5018), (4439, 4706)]