21367478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23689}}^1$

素因数の和:23743

約数の個数: 16

約数和(自身を含む): 35819280

約数和(自身を除く): 14451802

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 23689, 47378, 260579, 521158, 971249, 1942498, 10683739, 21367478]

約数ペア:

[(1, 21367478), (2, 10683739), (11, 1942498), (22, 971249), (41, 521158), (82, 260579), (451, 47378), (902, 23689)]