21150332

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10639}}^1$

素因数の和:10721

約数の個数: 24

約数和(自身を含む): 42900480

約数和(自身を除く): 21750148

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10639, 21278, 42556, 74473, 148946, 297892, 755369, 1510738, 3021476, 5287583, 10575166, 21150332]

約数ペア:

[(1, 21150332), (2, 10575166), (4, 5287583), (7, 3021476), (14, 1510738), (28, 755369), (71, 297892), (142, 148946), (284, 74473), (497, 42556), (994, 21278), (1988, 10639)]