21007744

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{4003}}^1$

素因数の和:4058

約数の個数: 32

約数和(自身を含む): 42882840

約数和(自身を除く): 21875096

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 328, 656, 1312, 2624, 4003, 5248, 8006, 16012, 32024, 64048, 128096, 164123, 256192, 328246, 512384, 656492, 1312984, 2625968, 5251936, 10503872, 21007744]

約数ペア:

[(1, 21007744), (2, 10503872), (4, 5251936), (8, 2625968), (16, 1312984), (32, 656492), (41, 512384), (64, 328246), (82, 256192), (128, 164123), (164, 128096), (328, 64048), (656, 32024), (1312, 16012), (2624, 8006), (4003, 5248)]