20663888

素因数分解:

$2^4\times 7^2\times {\mathrm{26357}}^1$

素因数の和:26379

約数の個数: 30

約数和(自身を含む): 46574586

約数和(自身を除く): 25910698

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 26357, 52714, 105428, 184499, 210856, 368998, 421712, 737996, 1291493, 1475992, 2582986, 2951984, 5165972, 10331944, 20663888]

約数ペア:

[(1, 20663888), (2, 10331944), (4, 5165972), (7, 2951984), (8, 2582986), (14, 1475992), (16, 1291493), (28, 737996), (49, 421712), (56, 368998), (98, 210856), (112, 184499), (196, 105428), (392, 52714), (784, 26357)]