20983352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2267}}^1$

素因数の和:2375

約数の個数: 32

約数和(自身を含む): 42865200

約数和(自身を除く): 21881848

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2267, 2314, 4534, 4628, 9068, 9256, 18136, 29471, 58942, 117884, 201763, 235768, 403526, 807052, 1614104, 2622919, 5245838, 10491676, 20983352]

約数ペア:

[(1, 20983352), (2, 10491676), (4, 5245838), (8, 2622919), (13, 1614104), (26, 807052), (52, 403526), (89, 235768), (104, 201763), (178, 117884), (356, 58942), (712, 29471), (1157, 18136), (2267, 9256), (2314, 9068), (4534, 4628)]