19642924

素因数分解:

$2^2\times 7^3\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 40768000

約数和(自身を除く): 21125076

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 139, 196, 206, 278, 343, 412, 556, 686, 721, 973, 1372, 1442, 1946, 2884, 3892, 5047, 6811, 10094, 13622, 14317, 20188, 27244, 28634, 35329, 47677, 57268, 70658, 95354, 100219, 141316, 190708, 200438, 400876, 701533, 1403066, 2806132, 4910731, 9821462, 19642924]

約数ペア:

[(1, 19642924), (2, 9821462), (4, 4910731), (7, 2806132), (14, 1403066), (28, 701533), (49, 400876), (98, 200438), (103, 190708), (139, 141316), (196, 100219), (206, 95354), (278, 70658), (343, 57268), (412, 47677), (556, 35329), (686, 28634), (721, 27244), (973, 20188), (1372, 14317), (1442, 13622), (1946, 10094), (2884, 6811), (3892, 5047)]