21539254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 37034496

約数和(自身を除く): 15495242

約数列:

[1, 2, 11, 22, 37, 47, 74, 94, 407, 517, 563, 814, 1034, 1126, 1739, 3478, 6193, 12386, 19129, 20831, 26461, 38258, 41662, 52922, 229141, 291071, 458282, 582142, 979057, 1958114, 10769627, 21539254]

約数ペア:

[(1, 21539254), (2, 10769627), (11, 1958114), (22, 979057), (37, 582142), (47, 458282), (74, 291071), (94, 229141), (407, 52922), (517, 41662), (563, 38258), (814, 26461), (1034, 20831), (1126, 19129), (1739, 12386), (3478, 6193)]