21091456

素因数分解:

$2^7\times {\mathrm{53}}^1\times {\mathrm{3109}}^1$

素因数の和:3176

約数の個数: 32

約数和(自身を含む): 42824700

約数和(自身を除く): 21733244

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 424, 848, 1696, 3109, 3392, 6218, 6784, 12436, 24872, 49744, 99488, 164777, 198976, 329554, 397952, 659108, 1318216, 2636432, 5272864, 10545728, 21091456]

約数ペア:

[(1, 21091456), (2, 10545728), (4, 5272864), (8, 2636432), (16, 1318216), (32, 659108), (53, 397952), (64, 329554), (106, 198976), (128, 164777), (212, 99488), (424, 49744), (848, 24872), (1696, 12436), (3109, 6784), (3392, 6218)]