20876973

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 31342080

約数和(自身を除く): 10465107

約数列:

[1, 3, 13, 39, 43, 59, 129, 177, 211, 559, 633, 767, 1677, 2301, 2537, 2743, 7611, 8229, 9073, 12449, 27219, 32981, 37347, 98943, 117949, 161837, 353847, 485511, 535307, 1605921, 6958991, 20876973]

約数ペア:

[(1, 20876973), (3, 6958991), (13, 1605921), (39, 535307), (43, 485511), (59, 353847), (129, 161837), (177, 117949), (211, 98943), (559, 37347), (633, 32981), (767, 27219), (1677, 12449), (2301, 9073), (2537, 8229), (2743, 7611)]