21551110144

素因数分解:

$2^{11}\times {\mathrm{43}}^1\times {\mathrm{244721}}^1$

素因数の和:244786

約数の個数: 48

約数和(自身を含む): 44094009960

約数和(自身を除く): 22542899816

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 512, 688, 1024, 1376, 2048, 2752, 5504, 11008, 22016, 44032, 88064, 244721, 489442, 978884, 1957768, 3915536, 7831072, 10523003, 15662144, 21046006, 31324288, 42092012, 62648576, 84184024, 125297152, 168368048, 250594304, 336736096, 501188608, 673472192, 1346944384, 2693888768, 5387777536, 10775555072, 21551110144]

約数ペア:

[(1, 21551110144), (2, 10775555072), (4, 5387777536), (8, 2693888768), (16, 1346944384), (32, 673472192), (43, 501188608), (64, 336736096), (86, 250594304), (128, 168368048), (172, 125297152), (256, 84184024), (344, 62648576), (512, 42092012), (688, 31324288), (1024, 21046006), (1376, 15662144), (2048, 10523003), (2752, 7831072), (5504, 3915536), (11008, 1957768), (22016, 978884), (44032, 489442), (88064, 244721)]