21277712

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8807}}^1$

素因数の和:8966

約数の個数: 20

約数和(自身を含む): 41503296

約数和(自身を除く): 20225584

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8807, 17614, 35228, 70456, 140912, 1329857, 2659714, 5319428, 10638856, 21277712]

約数ペア:

[(1, 21277712), (2, 10638856), (4, 5319428), (8, 2659714), (16, 1329857), (151, 140912), (302, 70456), (604, 35228), (1208, 17614), (2416, 8807)]