21745208

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 42024960

約数和(自身を除く): 20279752

約数列:

[1, 2, 4, 8, 47, 94, 151, 188, 302, 376, 383, 604, 766, 1208, 1532, 3064, 7097, 14194, 18001, 28388, 36002, 56776, 57833, 72004, 115666, 144008, 231332, 462664, 2718151, 5436302, 10872604, 21745208]

約数ペア:

[(1, 21745208), (2, 10872604), (4, 5436302), (8, 2718151), (47, 462664), (94, 231332), (151, 144008), (188, 115666), (302, 72004), (376, 57833), (383, 56776), (604, 36002), (766, 28388), (1208, 18001), (1532, 14194), (3064, 7097)]