21503824

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15101}}^1$

素因数の和:15198

約数の個数: 20

約数和(自身を含む): 42134580

約数和(自身を除く): 20630756

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15101, 30202, 60404, 120808, 241616, 1343989, 2687978, 5375956, 10751912, 21503824]

約数ペア:

[(1, 21503824), (2, 10751912), (4, 5375956), (8, 2687978), (16, 1343989), (89, 241616), (178, 120808), (356, 60404), (712, 30202), (1424, 15101)]