21528254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51503}}^1$

素因数の和:51535

約数の個数: 16

約数和(自身を含む): 37082880

約数和(自身を除く): 15554626

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 51503, 103006, 566533, 978557, 1133066, 1957114, 10764127, 21528254]

約数ペア:

[(1, 21528254), (2, 10764127), (11, 1957114), (19, 1133066), (22, 978557), (38, 566533), (209, 103006), (418, 51503)]