19328128

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{4871}}^1$

素因数の和:4916

約数の個数: 32

約数和(自身を含む): 39755520

約数和(自身を除く): 20427392

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 4871, 9742, 19484, 38968, 77936, 151001, 155872, 302002, 311744, 604004, 623488, 1208008, 2416016, 4832032, 9664064, 19328128]

約数ペア:

[(1, 19328128), (2, 9664064), (4, 4832032), (8, 2416016), (16, 1208008), (31, 623488), (32, 604004), (62, 311744), (64, 302002), (124, 155872), (128, 151001), (248, 77936), (496, 38968), (992, 19484), (1984, 9742), (3968, 4871)]