20161904

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5807}}^1$

素因数の和:5853

約数の個数: 40

約数和(自身を含む): 46092288

約数和(自身を除く): 25930384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 5807, 11614, 23228, 40649, 46456, 81298, 92912, 162596, 180017, 325192, 360034, 650384, 720068, 1260119, 1440136, 2520238, 2880272, 5040476, 10080952, 20161904]

約数ペア:

[(1, 20161904), (2, 10080952), (4, 5040476), (7, 2880272), (8, 2520238), (14, 1440136), (16, 1260119), (28, 720068), (31, 650384), (56, 360034), (62, 325192), (112, 180017), (124, 162596), (217, 92912), (248, 81298), (434, 46456), (496, 40649), (868, 23228), (1736, 11614), (3472, 5807)]