21262365

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5431}}^1$

素因数の和:5474

約数の個数: 32

約数和(自身を含む): 39110400

約数和(自身を除く): 17848035

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5431, 16293, 27155, 48879, 81465, 146637, 157499, 244395, 472497, 733185, 787495, 1417491, 2362485, 4252473, 7087455, 21262365]

約数ペア:

[(1, 21262365), (3, 7087455), (5, 4252473), (9, 2362485), (15, 1417491), (27, 787495), (29, 733185), (45, 472497), (87, 244395), (135, 157499), (145, 146637), (261, 81465), (435, 48879), (783, 27155), (1305, 16293), (3915, 5431)]