20911408

素因数分解:

$2^4\times 7^1\times {\mathrm{186709}}^1$

素因数の和:186724

約数の個数: 20

約数和(自身を含む): 46304080

約数和(自身を除く): 25392672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 186709, 373418, 746836, 1306963, 1493672, 2613926, 2987344, 5227852, 10455704, 20911408]

約数ペア:

[(1, 20911408), (2, 10455704), (4, 5227852), (7, 2987344), (8, 2613926), (14, 1493672), (16, 1306963), (28, 746836), (56, 373418), (112, 186709)]