21149085

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13177}}^1$

素因数の和:13292

約数の個数: 16

約数和(自身を含む): 34157376

約数和(自身を除く): 13008291

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 13177, 39531, 65885, 197655, 1409939, 4229817, 7049695, 21149085]

約数ペア:

[(1, 21149085), (3, 7049695), (5, 4229817), (15, 1409939), (107, 197655), (321, 65885), (535, 39531), (1605, 13177)]