21990067

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1093}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 25205760

約数和(自身を除く): 3215693

約数列:

[1, 11, 31, 59, 341, 649, 1093, 1829, 12023, 20119, 33883, 64487, 372713, 709357, 1999097, 21990067]

約数ペア:

[(1, 21990067), (11, 1999097), (31, 709357), (59, 372713), (341, 64487), (649, 33883), (1093, 20119), (1829, 12023)]