19816918016

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2764637}}^1$

素因数の和:2764664

約数の個数: 44

約数和(自身を含む): 45273711888

約数和(自身を除く): 25456793872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 3584, 7168, 2764637, 5529274, 11058548, 19352459, 22117096, 38704918, 44234192, 77409836, 88468384, 154819672, 176936768, 309639344, 353873536, 619278688, 707747072, 1238557376, 1415494144, 2477114752, 2830988288, 4954229504, 9908459008, 19816918016]

約数ペア:

[(1, 19816918016), (2, 9908459008), (4, 4954229504), (7, 2830988288), (8, 2477114752), (14, 1415494144), (16, 1238557376), (28, 707747072), (32, 619278688), (56, 353873536), (64, 309639344), (112, 176936768), (128, 154819672), (224, 88468384), (256, 77409836), (448, 44234192), (512, 38704918), (896, 22117096), (1024, 19352459), (1792, 11058548), (3584, 5529274), (7168, 2764637)]