21774820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8311}}^1$

素因数の和:8451

約数の個数: 24

約数和(自身を含む): 46081728

約数和(自身を除く): 24306908

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 8311, 16622, 33244, 41555, 83110, 166220, 1088741, 2177482, 4354964, 5443705, 10887410, 21774820]

約数ペア:

[(1, 21774820), (2, 10887410), (4, 5443705), (5, 4354964), (10, 2177482), (20, 1088741), (131, 166220), (262, 83110), (524, 41555), (655, 33244), (1310, 16622), (2620, 8311)]