20439944

素因数分解:

$2^3\times 7^1\times {\mathrm{383}}^1\times {\mathrm{953}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 43960320

約数和(自身を除く): 23520376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 383, 766, 953, 1532, 1906, 2681, 3064, 3812, 5362, 6671, 7624, 10724, 13342, 21448, 26684, 53368, 364999, 729998, 1459996, 2554993, 2919992, 5109986, 10219972, 20439944]

約数ペア:

[(1, 20439944), (2, 10219972), (4, 5109986), (7, 2919992), (8, 2554993), (14, 1459996), (28, 729998), (56, 364999), (383, 53368), (766, 26684), (953, 21448), (1532, 13342), (1906, 10724), (2681, 7624), (3064, 6671), (3812, 5362)]