20857535992

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{487}}^1\times {\mathrm{40867}}^1$

素因数の和:41491

約数の個数: 32

約数和(自身を含む): 39488296320

約数和(自身を除く): 18630760328

約数列:

[1, 2, 4, 8, 131, 262, 487, 524, 974, 1048, 1948, 3896, 40867, 63797, 81734, 127594, 163468, 255188, 326936, 510376, 5353577, 10707154, 19902229, 21414308, 39804458, 42828616, 79608916, 159217832, 2607191999, 5214383998, 10428767996, 20857535992]

約数ペア:

[(1, 20857535992), (2, 10428767996), (4, 5214383998), (8, 2607191999), (131, 159217832), (262, 79608916), (487, 42828616), (524, 39804458), (974, 21414308), (1048, 19902229), (1948, 10707154), (3896, 5353577), (40867, 510376), (63797, 326936), (81734, 255188), (127594, 163468)]