19215872

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2887}}^1$

素因数の和:2918

約数の個数: 40

約数和(自身を含む): 41361936

約数和(自身を除く): 22146064

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 2887, 3328, 5774, 6656, 11548, 23096, 37531, 46192, 75062, 92384, 150124, 184768, 300248, 369536, 600496, 739072, 1200992, 1478144, 2401984, 4803968, 9607936, 19215872]

約数ペア:

[(1, 19215872), (2, 9607936), (4, 4803968), (8, 2401984), (13, 1478144), (16, 1200992), (26, 739072), (32, 600496), (52, 369536), (64, 300248), (104, 184768), (128, 150124), (208, 92384), (256, 75062), (416, 46192), (512, 37531), (832, 23096), (1664, 11548), (2887, 6656), (3328, 5774)]