19721512

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 38027880

約数和(自身を除く): 18306368

約数列:

[1, 2, 4, 8, 53, 106, 193, 212, 241, 386, 424, 482, 772, 964, 1544, 1928, 10229, 12773, 20458, 25546, 40916, 46513, 51092, 81832, 93026, 102184, 186052, 372104, 2465189, 4930378, 9860756, 19721512]

約数ペア:

[(1, 19721512), (2, 9860756), (4, 4930378), (8, 2465189), (53, 372104), (106, 186052), (193, 102184), (212, 93026), (241, 81832), (386, 51092), (424, 46513), (482, 40916), (772, 25546), (964, 20458), (1544, 12773), (1928, 10229)]