21163695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3803}}^1$

素因数の和:3871

約数の個数: 32

約数和(自身を含む): 39439872

約数和(自身を除く): 18276177

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 3803, 5565, 11409, 19015, 26621, 57045, 79863, 133105, 201559, 399315, 604677, 1007795, 1410913, 3023385, 4232739, 7054565, 21163695]

約数ペア:

[(1, 21163695), (3, 7054565), (5, 4232739), (7, 3023385), (15, 1410913), (21, 1007795), (35, 604677), (53, 399315), (105, 201559), (159, 133105), (265, 79863), (371, 57045), (795, 26621), (1113, 19015), (1855, 11409), (3803, 5565)]