20816768

素因数分解:

$2^7\times 7^2\times {\mathrm{3319}}^1$

素因数の和:3347

約数の個数: 48

約数和(自身を含む): 48256200

約数和(自身を除く): 27439432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3319, 6272, 6638, 13276, 23233, 26552, 46466, 53104, 92932, 106208, 162631, 185864, 212416, 325262, 371728, 424832, 650524, 743456, 1301048, 1486912, 2602096, 2973824, 5204192, 10408384, 20816768]

約数ペア:

[(1, 20816768), (2, 10408384), (4, 5204192), (7, 2973824), (8, 2602096), (14, 1486912), (16, 1301048), (28, 743456), (32, 650524), (49, 424832), (56, 371728), (64, 325262), (98, 212416), (112, 185864), (128, 162631), (196, 106208), (224, 92932), (392, 53104), (448, 46466), (784, 26552), (896, 23233), (1568, 13276), (3136, 6638), (3319, 6272)]