21825020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155893}}^1$

素因数の和:155909

約数の個数: 24

約数和(自身を含む): 52380384

約数和(自身を除く): 30555364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155893, 311786, 623572, 779465, 1091251, 1558930, 2182502, 3117860, 4365004, 5456255, 10912510, 21825020]

約数ペア:

[(1, 21825020), (2, 10912510), (4, 5456255), (5, 4365004), (7, 3117860), (10, 2182502), (14, 1558930), (20, 1091251), (28, 779465), (35, 623572), (70, 311786), (140, 155893)]