21181091

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:602

約数の個数: 16

約数和(自身を含む): 23236608

約数和(自身を除く): 2055517

約数列:

[1, 23, 31, 61, 487, 713, 1403, 1891, 11201, 15097, 29707, 43493, 347231, 683261, 920917, 21181091]

約数ペア:

[(1, 21181091), (23, 920917), (31, 683261), (61, 347231), (487, 43493), (713, 29707), (1403, 15097), (1891, 11201)]