21187958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 14616202

約数列:

[1, 2, 11, 22, 73, 79, 146, 158, 167, 334, 803, 869, 1606, 1738, 1837, 3674, 5767, 11534, 12191, 13193, 24382, 26386, 63437, 126874, 134101, 145123, 268202, 290246, 963089, 1926178, 10593979, 21187958]

約数ペア:

[(1, 21187958), (2, 10593979), (11, 1926178), (22, 963089), (73, 290246), (79, 268202), (146, 145123), (158, 134101), (167, 126874), (334, 63437), (803, 26386), (869, 24382), (1606, 13193), (1738, 12191), (1837, 11534), (3674, 5767)]