20623984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 41403600

約数和(自身を除く): 20779616

約数列:

[1, 2, 4, 8, 16, 41, 82, 149, 164, 211, 298, 328, 422, 596, 656, 844, 1192, 1688, 2384, 3376, 6109, 8651, 12218, 17302, 24436, 31439, 34604, 48872, 62878, 69208, 97744, 125756, 138416, 251512, 503024, 1288999, 2577998, 5155996, 10311992, 20623984]

約数ペア:

[(1, 20623984), (2, 10311992), (4, 5155996), (8, 2577998), (16, 1288999), (41, 503024), (82, 251512), (149, 138416), (164, 125756), (211, 97744), (298, 69208), (328, 62878), (422, 48872), (596, 34604), (656, 31439), (844, 24436), (1192, 17302), (1688, 12218), (2384, 8651), (3376, 6109)]