18745328

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5399}}^1$

素因数の和:5445

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 24109072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5399, 10798, 21596, 37793, 43192, 75586, 86384, 151172, 167369, 302344, 334738, 604688, 669476, 1171583, 1338952, 2343166, 2677904, 4686332, 9372664, 18745328]

約数ペア:

[(1, 18745328), (2, 9372664), (4, 4686332), (7, 2677904), (8, 2343166), (14, 1338952), (16, 1171583), (28, 669476), (31, 604688), (56, 334738), (62, 302344), (112, 167369), (124, 151172), (217, 86384), (248, 75586), (434, 43192), (496, 37793), (868, 21596), (1736, 10798), (3472, 5399)]