20496616

素因数分解:

$2^3\times 7^1\times {\mathrm{571}}^1\times {\mathrm{641}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 44066880

約数和(自身を除く): 23570264

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 571, 641, 1142, 1282, 2284, 2564, 3997, 4487, 4568, 5128, 7994, 8974, 15988, 17948, 31976, 35896, 366011, 732022, 1464044, 2562077, 2928088, 5124154, 10248308, 20496616]

約数ペア:

[(1, 20496616), (2, 10248308), (4, 5124154), (7, 2928088), (8, 2562077), (14, 1464044), (28, 732022), (56, 366011), (571, 35896), (641, 31976), (1142, 17948), (1282, 15988), (2284, 8974), (2564, 7994), (3997, 5128), (4487, 4568)]