20428184

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1607}}^1$

素因数の和:1847

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 23566696

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1589, 1607, 1816, 3178, 3214, 6356, 6428, 11249, 12712, 12856, 22498, 44996, 89992, 364789, 729578, 1459156, 2553523, 2918312, 5107046, 10214092, 20428184]

約数ペア:

[(1, 20428184), (2, 10214092), (4, 5107046), (7, 2918312), (8, 2553523), (14, 1459156), (28, 729578), (56, 364789), (227, 89992), (454, 44996), (908, 22498), (1589, 12856), (1607, 12712), (1816, 11249), (3178, 6428), (3214, 6356)]