19939731968

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2995753}}^1$

素因数の和:2995784

約数の個数: 40

約数和(自身を含む): 42905188788

約数和(自身を除く): 22965456820

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3328, 6656, 2995753, 5991506, 11983012, 23966024, 38944789, 47932048, 77889578, 95864096, 155779156, 191728192, 311558312, 383456384, 623116624, 766912768, 1246233248, 1533825536, 2492466496, 4984932992, 9969865984, 19939731968]

約数ペア:

[(1, 19939731968), (2, 9969865984), (4, 4984932992), (8, 2492466496), (13, 1533825536), (16, 1246233248), (26, 766912768), (32, 623116624), (52, 383456384), (64, 311558312), (104, 191728192), (128, 155779156), (208, 95864096), (256, 77889578), (416, 47932048), (512, 38944789), (832, 23966024), (1664, 11983012), (3328, 5991506), (6656, 2995753)]