21328286

素因数分解:

$2^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{2333}}^1$

素因数の和:2995

約数の個数: 16

約数和(自身を含む): 36634464

約数和(自身を除く): 15306178

約数列:

[1, 2, 7, 14, 653, 1306, 2333, 4571, 4666, 9142, 16331, 32662, 1523449, 3046898, 10664143, 21328286]

約数ペア:

[(1, 21328286), (2, 10664143), (7, 3046898), (14, 1523449), (653, 32662), (1306, 16331), (2333, 9142), (4571, 4666)]