21240832

素因数分解:

$2^{10}\times {\mathrm{20743}}^1$

素因数の和:20763

約数の個数: 22

約数和(自身を含む): 42462968

約数和(自身を除く): 21222136

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 20743, 41486, 82972, 165944, 331888, 663776, 1327552, 2655104, 5310208, 10620416, 21240832]

約数ペア:

[(1, 21240832), (2, 10620416), (4, 5310208), (8, 2655104), (16, 1327552), (32, 663776), (64, 331888), (128, 165944), (256, 82972), (512, 41486), (1024, 20743)]