21124035

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16187}}^1$

素因数の和:16227

約数の個数: 24

約数和(自身を含む): 37879920

約数和(自身を除く): 16755885

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16187, 48561, 80935, 145683, 242805, 469423, 728415, 1408269, 2347115, 4224807, 7041345, 21124035]

約数ペア:

[(1, 21124035), (3, 7041345), (5, 4224807), (9, 2347115), (15, 1408269), (29, 728415), (45, 469423), (87, 242805), (145, 145683), (261, 80935), (435, 48561), (1305, 16187)]