19504384

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1326

約数の個数: 36

約数和(自身を含む): 39602500

約数和(自身を除く): 20098116

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 1249, 1952, 2498, 3904, 4996, 7808, 9992, 15616, 19984, 39968, 76189, 79936, 152378, 159872, 304756, 319744, 609512, 1219024, 2438048, 4876096, 9752192, 19504384]

約数ペア:

[(1, 19504384), (2, 9752192), (4, 4876096), (8, 2438048), (16, 1219024), (32, 609512), (61, 319744), (64, 304756), (122, 159872), (128, 152378), (244, 79936), (256, 76189), (488, 39968), (976, 19984), (1249, 15616), (1952, 9992), (2498, 7808), (3904, 4996)]