20864768

素因数分解:

$2^8\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:712

約数の個数: 36

約数和(自身を含む): 42004200

約数和(自身を除く): 21139432

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 149, 256, 298, 547, 596, 1094, 1192, 2188, 2384, 4376, 4768, 8752, 9536, 17504, 19072, 35008, 38144, 70016, 81503, 140032, 163006, 326012, 652024, 1304048, 2608096, 5216192, 10432384, 20864768]

約数ペア:

[(1, 20864768), (2, 10432384), (4, 5216192), (8, 2608096), (16, 1304048), (32, 652024), (64, 326012), (128, 163006), (149, 140032), (256, 81503), (298, 70016), (547, 38144), (596, 35008), (1094, 19072), (1192, 17504), (2188, 9536), (2384, 8752), (4376, 4768)]