21335445

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16349}}^1$

素因数の和:16389

約数の個数: 24

約数和(自身を含む): 38259000

約数和(自身を除く): 16923555

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16349, 49047, 81745, 147141, 245235, 474121, 735705, 1422363, 2370605, 4267089, 7111815, 21335445]

約数ペア:

[(1, 21335445), (3, 7111815), (5, 4267089), (9, 2370605), (15, 1422363), (29, 735705), (45, 474121), (87, 245235), (145, 147141), (261, 81745), (435, 49047), (1305, 16349)]