20210979328

素因数分解:

$2^9\times {\mathrm{1543}}^1\times {\mathrm{25583}}^1$

素因数の和:27144

約数の個数: 40

約数和(自身を含む): 40410235008

約数和(自身を除く): 20199255680

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1543, 3086, 6172, 12344, 24688, 25583, 49376, 51166, 98752, 102332, 197504, 204664, 395008, 409328, 790016, 818656, 1637312, 3274624, 6549248, 13098496, 39474569, 78949138, 157898276, 315796552, 631593104, 1263186208, 2526372416, 5052744832, 10105489664, 20210979328]

約数ペア:

[(1, 20210979328), (2, 10105489664), (4, 5052744832), (8, 2526372416), (16, 1263186208), (32, 631593104), (64, 315796552), (128, 157898276), (256, 78949138), (512, 39474569), (1543, 13098496), (3086, 6549248), (6172, 3274624), (12344, 1637312), (24688, 818656), (25583, 790016), (49376, 409328), (51166, 395008), (98752, 204664), (102332, 197504)]