20983556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4457}}^1$

素因数の和:4579

約数の個数: 24

約数和(自身を含む): 40442976

約数和(自身を除く): 19459420

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4457, 4708, 8914, 17828, 49027, 98054, 196108, 476899, 953798, 1907596, 5245889, 10491778, 20983556]

約数ペア:

[(1, 20983556), (2, 10491778), (4, 5245889), (11, 1907596), (22, 953798), (44, 476899), (107, 196108), (214, 98054), (428, 49027), (1177, 17828), (2354, 8914), (4457, 4708)]