20989472

素因数分解:

$2^5\times 7^1\times {\mathrm{93703}}^1$

素因数の和:93720

約数の個数: 24

約数和(自身を含む): 47226816

約数和(自身を除く): 26237344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 93703, 187406, 374812, 655921, 749624, 1311842, 1499248, 2623684, 2998496, 5247368, 10494736, 20989472]

約数ペア:

[(1, 20989472), (2, 10494736), (4, 5247368), (7, 2998496), (8, 2623684), (14, 1499248), (16, 1311842), (28, 749624), (32, 655921), (56, 374812), (112, 187406), (224, 93703)]